47:"/_next/static/chunks/2g8w-80ml0qgh.js" 48:"/_next/static/chunks/0iv56yrji_20j.js" 49:"/_next/static/chunks/2j22cxchii_xx.js" 4a:"/_next/static/chunks/0lc44eilyyvky.js" 4b:"/_next/static/chunks/1jl6tco-uuy-j.js" 4c:"/_next/static/chunks/20w4eaqlekefm.js" 4d:"/_next/static/chunks/3i1_gmjy-npy3.js" 4e:"/_next/static/chunks/3k2gyg36fnag_.js" 4f:"/_next/static/chunks/0om3fkgfnicab.js" 50:"/_next/static/chunks/39xqakak-rww8.js" 51:"/_next/static/chunks/2k8pepwc4pxns.js" 52:"/_next/static/chunks/3di53f0fz7pw_.js" 53:"/_next/static/chunks/1ot1rbfa0d_n4.js" 54:"/_next/static/chunks/1nyz-fz1mk3y6.js" 55:"/_next/static/chunks/2d693k1du0jif.js" 56:"/_next/static/chunks/23lvo0719esx5.js" 57:"/_next/static/chunks/2s3axvrz9s11v.js" 58:"/_next/static/chunks/3m1xjj5kw5fie.js" 59:"/_next/static/chunks/20k3408cq3fwt.js" 5a:"/_next/static/chunks/3bgoyiso1rhn7.js" 5b:"/_next/static/chunks/1r-4-7k4p367v.js" 5c:"/_next/static/chunks/0oag6lffx7d01.js" 5d:"/_next/static/chunks/082jo-0ajazgr.js" 5e:"/_next/static/chunks/0-a64pg0hn7g7.js" 5f:"/_next/static/chunks/09nq57stwzkgf.js" 60:"/_next/static/chunks/20329i6m_04t6.js" 61:"/_next/static/chunks/0wa9m1-tphf9u.js" 62:"/_next/static/chunks/0so1i35v7xcta.js" 63:"/_next/static/chunks/0i3-eynrkvqi7.js" 64:"/_next/static/chunks/1aoncsc85dt-5.js" 65:"/_next/static/chunks/2ozcrjb_hh74t.js" 66:"/_next/static/chunks/0hy4a31wjpabs.js" 67:"/_next/static/chunks/1tn-0fivsxsv1.js" 68:"/_next/static/chunks/0hlb44ca7-4a2.js" 69:"/_next/static/chunks/3ah32gv3pv1wi.js" 6a:"/_next/static/chunks/0jbzid2v9xv3h.js" 6b:"/_next/static/chunks/2wl4_vih_-70f.js" 6c:"/_next/static/chunks/1_lo_qve3gu86.js" 6d:"/_next/static/chunks/3tgd0la5mmnsn.js" 6e:"/_next/static/chunks/18ggtgz2yf759.js" 6f:"/_next/static/chunks/3odmutpycmfnf.js" 70:"/_next/static/chunks/253gnmj0-cj17.js" 71:I[593304,["$2d","$2e","$2f","$30","$31","$32","$47","$48","$49","$4a","$4b","$4c","$4d","$4e","$4f","$50","$51","$52","$53","$54","$55","$56","$57","$58","$59","$5a","$5b","$5c","$5d","$5e","$5f","$60","$61","$62","$63","$64","$65","$66","$67","$68","$69","$6a","$6b","$6c","$6d","$6e","$6f","$70"],"OwnedHydration"] 72:T431,Imagine you're working with a `BankAccount` class in a financial system. You call `getBalance()` and receive `-$500,000`. But wait—wasn't this account type supposed to be a "Non-Negative Balance Account"? How did this happen? The answer lies in **class invariants**—properties that must always be true for an object, from the moment it's created until the moment it's destroyed. When these invariants are violated, objects enter impossible states, and systems fail in unpredictable ways. **An invariant isn't just documentation. It's a contract that every method must maintain.** The `BankAccount` that went negative had an invariant: `balance >= 0`. Somewhere, some method—perhaps in a subclass—violated this invariant. The result? Data corruption flowing through the system, affecting calculations, reports, and potentially real-world financial decisions. This page explores the concept of class invariants: what they are, why they're critical to reliable software, and how they form the foundation of the Liskov Substitution Principle's behavioral contracts.73:T45b,A **class invariant** is a condition that is always true for every valid instance of a class, throughout its entire lifetime. From the moment an object is constructed until the moment it goes out of scope, invariants must hold. **Formal definition:** > A class invariant is a logical condition involving the instance variables of a class that must be true before and after every method call. If the invariant ever becomes false, the object is in an invalid state. Let's unpack this carefully: 1. **"Always true"** means there's never a moment (between method calls) when the invariant can be false 2. **"Before and after every method"** means methods can temporarily break invariants during execution, but must restore them before returning 3. **"Invalid state"** means the object's data no longer represents a meaningful entity Invariants are different from preconditions and postconditions: - **Preconditions**: What must be true *before* a method is called - **Postconditions**: What must be true *after* a method completes - **Invariants**: What must be true *always*, independent of any specific method74:T8b4,/** * A DateRange class with a clear invariant: * INVARIANT: startDate <= endDate (start never after end) * * This invariant must be true: * - After construction * - After every method call * - During the object's entire lifetime */ class DateRange { private startDate: Date; private endDate: Date; // INVARIANT: startDate <= endDate constructor(start: Date, end: Date) { // Check invariant at construction time if (start > end) { throw new Error("Invalid DateRange: start cannot be after end"); } this.startDate = start; this.endDate = end; // Invariant established: startDate <= endDate ✓ } /** * Move the start date earlier. * This always maintains the invariant since we're moving start earlier. */ extendStart(newStart: Date): void { if (newStart > this.endDate) { throw new Error("Cannot set start after end date"); } this.startDate = newStart; // Invariant maintained: startDate <= endDate ✓ } /** * Move the end date later. * This always maintains the invariant since we're moving end later. */ extendEnd(newEnd: Date): void { if (newEnd < this.startDate) { throw new Error("Cannot set end before start date"); } this.endDate = newEnd; // Invariant maintained: startDate <= endDate ✓ } /** * Shift the entire range by a number of days. * Invariant is maintained because both dates move equally. */ shiftDays(days: number): void { const msPerDay = 24 * 60 * 60 * 1000; const shift = days * msPerDay; // Both dates shift together - invariant cannot be violated this.startDate = new Date(this.startDate.getTime() + shift); this.endDate = new Date(this.endDate.getTime() + shift); // Invariant maintained: startDate <= endDate ✓ } getDurationDays(): number { const ms = this.endDate.getTime() - this.startDate.getTime(); return Math.floor(ms / (24 * 60 * 60 * 1000)); // Note: This method relies on the invariant to return non-negative } }75:T82b,from datetime import date, timedelta class DateRange: """ A DateRange class with a clear invariant: INVARIANT: start_date <= end_date (start never after end) This invariant must be true: - After construction - After every method call - During the object's entire lifetime """ # INVARIANT: start_date <= end_date def __init__(self, start: date, end: date): # Check invariant at construction time if start > end: raise ValueError("Invalid DateRange: start cannot be after end") self._start_date = start self._end_date = end # Invariant established: start_date <= end_date ✓ def extend_start(self, new_start: date) -> None: """ Move the start date earlier. This always maintains the invariant since we're moving start earlier. """ if new_start > self._end_date: raise ValueError("Cannot set start after end date") self._start_date = new_start # Invariant maintained: start_date <= end_date ✓ def extend_end(self, new_end: date) -> None: """ Move the end date later. This always maintains the invariant since we're moving end later. """ if new_end < self._start_date: raise ValueError("Cannot set end before start date") self._end_date = new_end # Invariant maintained: start_date <= end_date ✓ def shift_days(self, days: int) -> None: """ Shift the entire range by a number of days. Invariant is maintained because both dates move equally. """ delta = timedelta(days=days) # Both dates shift together - invariant cannot be violated self._start_date = self._start_date + delta self._end_date = self._end_date + delta # Invariant maintained: start_date <= end_date ✓ def get_duration_days(self) -> int: # This method relies on the invariant to return non-negative return (self._end_date - self._start_date).days76:T918,import java.time.LocalDate; import java.time.temporal.ChronoUnit; /** * A DateRange class with a clear invariant: * INVARIANT: startDate <= endDate (start never after end) * * This invariant must be true: * - After construction * - After every method call * - During the object's entire lifetime */ public class DateRange { private LocalDate startDate; private LocalDate endDate; // INVARIANT: startDate <= endDate public DateRange(LocalDate start, LocalDate end) { // Check invariant at construction time if (start.isAfter(end)) { throw new IllegalArgumentException( "Invalid DateRange: start cannot be after end" ); } this.startDate = start; this.endDate = end; // Invariant established: startDate <= endDate ✓ } /** * Move the start date earlier. * This always maintains the invariant since we're moving start earlier. */ public void extendStart(LocalDate newStart) { if (newStart.isAfter(this.endDate)) { throw new IllegalArgumentException( "Cannot set start after end date" ); } this.startDate = newStart; // Invariant maintained: startDate <= endDate ✓ } /** * Move the end date later. * This always maintains the invariant since we're moving end later. */ public void extendEnd(LocalDate newEnd) { if (newEnd.isBefore(this.startDate)) { throw new IllegalArgumentException( "Cannot set end before start date" ); } this.endDate = newEnd; // Invariant maintained: startDate <= endDate ✓ } /** * Shift the entire range by a number of days. * Invariant is maintained because both dates move equally. */ public void shiftDays(long days) { // Both dates shift together - invariant cannot be violated this.startDate = this.startDate.plusDays(days); this.endDate = this.endDate.plusDays(days); // Invariant maintained: startDate <= endDate ✓ } public long getDurationDays() { // This method relies on the invariant to return non-negative return ChronoUnit.DAYS.between(startDate, endDate); } }77:T557,class Percentage { private value: number; // INVARIANT: 0 <= value <= 100 constructor(value: number) { if (value < 0 || value > 100) { throw new Error("Percentage must be between 0 and 100"); } this.value = value; } add(other: Percentage): Percentage { // Result capped to maintain invariant const sum = Math.min(100, this.value + other.value); return new Percentage(sum); } } class EmailAddress { private readonly address: string; // INVARIANT: address is a valid email format (contains @ and domain) constructor(address: string) { if (!this.isValidEmail(address)) { throw new Error("Invalid email address format"); } this.address = address; } private isValidEmail(email: string): boolean { // Simplified validation const pattern = /^[^\s@]+@[^\s@]+\.[^\s@]+$/; return pattern.test(email); } } class AgeBracket { private minAge: number; private maxAge: number; // INVARIANT: 0 <= minAge <= maxAge <= 150 constructor(minAge: number, maxAge: number) { if (minAge < 0 || maxAge > 150 || minAge > maxAge) { throw new Error("Invalid age bracket"); } this.minAge = minAge; this.maxAge = maxAge; } }78:T791,class Rectangle { private width: number; private height: number; private area: number; // Cached for performance // INVARIANT: area === width * height (always synchronized) constructor(width: number, height: number) { this.width = width; this.height = height; this.area = width * height; // Establish invariant } setWidth(newWidth: number): void { this.width = newWidth; this.area = this.width * this.height; // Maintain invariant } setHeight(newHeight: number): void { this.height = newHeight; this.area = this.width * this.height; // Maintain invariant } getArea(): number { // Relies on invariant - no recalculation needed return this.area; } } class SortedList { private items: T[]; private comparator: (a: T, b: T) => number; // INVARIANT: For all i < j: comparator(items[i], items[j]) <= 0 // (Items are always in sorted order) constructor(comparator: (a: T, b: T) => number) { this.items = []; this.comparator = comparator; } add(item: T): void { // Binary search to find insertion point - maintains sort invariant let left = 0, right = this.items.length; while (left < right) { const mid = Math.floor((left + right) / 2); if (this.comparator(this.items[mid], item) <= 0) { left = mid + 1; } else { right = mid; } } this.items.splice(left, 0, item); // Invariant maintained: items remain sorted } getMin(): T | undefined { // Relies on invariant: smallest is always at index 0 return this.items[0]; } getMax(): T | undefined { // Relies on invariant: largest is always at last index return this.items[this.items.length - 1]; } }79:T8b4,class BinarySearchTree { private root: TreeNode | null = null; private comparator: (a: T, b: T) => number; // INVARIANT: For every node N: // - All values in N.left subtree < N.value // - All values in N.right subtree > N.value // (Binary Search Tree property) constructor(comparator: (a: T, b: T) => number) { this.comparator = comparator; } insert(value: T): void { // Insert maintains BST invariant by choosing correct position if (!this.root) { this.root = { value, left: null, right: null }; return; } this.insertRecursive(this.root, value); // Invariant maintained: BST property preserved } private insertRecursive(node: TreeNode, value: T): void { const comparison = this.comparator(value, node.value); if (comparison < 0) { // Value is less - goes in left subtree (maintains invariant) if (node.left) { this.insertRecursive(node.left, value); } else { node.left = { value, left: null, right: null }; } } else { // Value is greater/equal - goes in right subtree (maintains invariant) if (node.right) { this.insertRecursive(node.right, value); } else { node.right = { value, left: null, right: null }; } } } contains(value: T): boolean { // Search relies on BST invariant for O(log n) lookup return this.searchRecursive(this.root, value); } private searchRecursive(node: TreeNode | null, value: T): boolean { if (!node) return false; const comparison = this.comparator(value, node.value); if (comparison === 0) return true; // Invariant guarantees we only need to search one subtree if (comparison < 0) { return this.searchRecursive(node.left, value); } else { return this.searchRecursive(node.right, value); } } } interface TreeNode { value: T; left: TreeNode | null; right: TreeNode | null; }7a:T5e8,class LinkedList { private head: ListNode | null = null; private tail: ListNode | null = null; private count: number = 0; // INVARIANT 1: count === actual number of nodes in list // INVARIANT 2: if count === 0, then head === null && tail === null // INVARIANT 3: if count > 0, then head !== null && tail !== null // INVARIANT 4: tail.next === null (tail is always the last node) add(value: T): void { const newNode: ListNode = { value, next: null }; if (this.tail) { this.tail.next = newNode; this.tail = newNode; } else { this.head = newNode; this.tail = newNode; } this.count++; // Maintain count invariant // All invariants maintained } removeFirst(): T | undefined { if (!this.head) return undefined; const value = this.head.value; this.head = this.head.next; if (!this.head) { this.tail = null; // Maintain invariant 2 } this.count--; // Maintain count invariant // All invariants maintained return value; } size(): number { // Relies on count invariant - O(1) instead of traversing return this.count; } isEmpty(): boolean { // Relies on invariant 2 return this.count === 0; } } interface ListNode { value: T; next: ListNode | null; }7b:T7b7,// WITHOUT invariant guarantees - defensive everywhere class UntrustedRectangle { width: number | null = null; height: number | null = null; getArea(): number | null { // Must check everything because nothing is guaranteed if (this.width === null || this.height === null) { return null; } if (this.width < 0 || this.height < 0) { return null; // Or throw? Caller doesn't know what to expect } return this.width * this.height; } getPerimeter(): number | null { // Same defensive checks repeated everywhere if (this.width === null || this.height === null) { return null; } if (this.width < 0 || this.height < 0) { return null; } return 2 * (this.width + this.height); } } // WITH invariant guarantees - clean and focused class TrustedRectangle { // INVARIANT: width > 0, height > 0 (always positive, never null) private constructor( private readonly width: number, private readonly height: number ) {} static create(width: number, height: number): TrustedRectangle { // Invariant enforced at construction if (width <= 0 || height <= 0) { throw new Error("Dimensions must be positive"); } return new TrustedRectangle(width, height); } getArea(): number { // No checks needed - invariant guarantees valid dimensions return this.width * this.height; } getPerimeter(): number { // Clean implementation relying on invariant return 2 * (this.width + this.height); } scale(factor: number): TrustedRectangle { if (factor <= 0) { throw new Error("Scale factor must be positive"); } // Result automatically satisfies invariant return new TrustedRectangle(this.width * factor, this.height * factor); } }7c:T8fc,class SortedArray { private items: T[]; private comparator: (a: T, b: T) => number; // INVARIANT: items is always sorted according to comparator constructor(comparator: (a: T, b: T) => number) { this.items = []; this.comparator = comparator; } /** * Because of the invariant, we can use binary search. * O(log n) instead of O(n) for unsorted arrays. */ contains(item: T): boolean { return this.binarySearch(item) !== -1; } /** * Find minimum in O(1) because invariant guarantees smallest is first. */ min(): T | undefined { return this.items[0]; // Invariant: first is always smallest } /** * Find maximum in O(1) because invariant guarantees largest is last. */ max(): T | undefined { return this.items[this.items.length - 1]; // Invariant: last is always largest } /** * Merge two sorted arrays in O(n + m) because both maintain sort invariant. * Without the invariant, this would require O((n+m) log(n+m)) to sort. */ merge(other: SortedArray): SortedArray { const result = new SortedArray(this.comparator); let i = 0, j = 0; // Merge in sorted order - only possible because both are sorted while (i < this.items.length && j < other.items.length) { if (this.comparator(this.items[i], other.items[j]) <= 0) { result.items.push(this.items[i++]); } else { result.items.push(other.items[j++]); } } // Append remaining items (already sorted) while (i < this.items.length) result.items.push(this.items[i++]); while (j < other.items.length) result.items.push(other.items[j++]); return result; // Result also maintains invariant } private binarySearch(item: T): number { let left = 0, right = this.items.length - 1; while (left <= right) { const mid = Math.floor((left + right) / 2); const cmp = this.comparator(this.items[mid], item); if (cmp === 0) return mid; if (cmp < 0) left = mid + 1; else right = mid - 1; } return -1; } }7d:T775,class NonNegativeBalance { // INVARIANT: balance >= 0 private balance: number; constructor(initialBalance: number) { if (initialBalance < 0) { throw new Error("Initial balance cannot be negative"); } this.balance = initialBalance; } deposit(amount: number): void { if (amount < 0) { throw new Error("Cannot deposit negative amount"); } this.balance += amount; // Invariant maintained: adding positive to non-negative stays non-negative } withdraw(amount: number): void { if (amount < 0) { throw new Error("Cannot withdraw negative amount"); } if (amount > this.balance) { throw new Error("Insufficient funds"); } this.balance -= amount; // Invariant maintained: we checked amount <= balance } getBalance(): number { return this.balance; // Caller can trust this is >= 0 } } // Caller code relies on the invariant function calculateInterest(account: NonNegativeBalance): number { const balance = account.getBalance(); // This code TRUSTS that balance >= 0 // No check needed because the invariant guarantees it const rate = 0.05; return balance * rate; // Always non-negative } function displayBalance(account: NonNegativeBalance): string { const balance = account.getBalance(); // Safe to use without checking for negative // The invariant guarantees balance >= 0 return `$${balance.toFixed(2)}`; } function transferSafely( from: NonNegativeBalance, to: NonNegativeBalance, amount: number ): void { // This operation is safe because both accounts maintain invariants from.withdraw(amount); // Will throw if insufficient funds to.deposit(amount); // If we reach here, both accounts still satisfy invariants }7e:T5df,// Given this class, what are its invariants? class Order { private items: OrderItem[]; private status: OrderStatus; private total: number; private createdAt: Date; private shippedAt: Date | null; constructor(items: OrderItem[]) { if (items.length === 0) { throw new Error("Order must have at least one item"); } this.items = [...items]; // Defensive copy this.status = OrderStatus.PENDING; this.total = this.calculateTotal(); this.createdAt = new Date(); this.shippedAt = null; } private calculateTotal(): number { return this.items.reduce((sum, item) => sum + item.price * item.quantity, 0); } ship(): void { if (this.status !== OrderStatus.PENDING) { throw new Error("Can only ship pending orders"); } this.status = OrderStatus.SHIPPED; this.shippedAt = new Date(); } getItems(): OrderItem[] { return [...this.items]; // Defensive copy - can't modify internal } } // DISCOVERED INVARIANTS: // 1. items.length > 0 (checked in constructor) // 2. total === sum of item prices * quantities (set at construction) // 3. createdAt is never null (set at construction) // 4. If status === SHIPPED, then shippedAt !== null // 5. If status === PENDING, then shippedAt === null // 6. items array is immutable after construction (defensive copies) // 7. status transitions: PENDING -> SHIPPED (never backwards)46:["$","$L71",null,{"owner":"anonymous","state":{"mutations":[],"queries":[{"dehydratedAt":1792313539925,"state":{"data":{"json":{"archivedAt":null,"id":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","slug":"lld-system-design","title":"Low-Level System Design","description":"Learn object-oriented design and design patterns, solve low-level design cases, and practise state transitions, persistence and error handling in real repositories and code reviews.","image":null,"color":"#0EA5E9","keyTopics":["Object-oriented design","SOLID principles","Design patterns","API and persistence design","Concurrency fundamentals","Clean architecture","Testing and maintainability","LLD interview preparation"],"estimatedHours":209.9,"problemCount":44,"visualizerCount":0,"quizCount":0,"learningCount":246,"difficulty":"INTERMEDIATE","idealFor":["Software developers","Backend and full-stack engineers","Interview candidates","Engineers improving design skills"],"prerequisites":["Basic programming and OOP concepts","Comfort with classes and interfaces","Familiarity with one OOP language"],"skillsGained":["Domain modeling","Class and API design","Applying SOLID effectively","Pattern selection and trade-offs","Concurrency-safe design","Maintainable code architecture"],"outcomes":["Design extensible object models","Build maintainable service components","Choose appropriate design patterns","Improve code quality and testability","Perform strongly in LLD interviews"],"overview":"This LLD learning path develops practical software design skills from object modeling to production-ready architecture decisions.\n\n**What you'll learn:**\n• OOP and UML fundamentals\n• SOLID and essential design principles\n• Creational, structural, and behavioral patterns\n• API, persistence, and caching design\n• Concurrency and resource management\n• End-to-end LLD case studies","createdAt":"2026-10-15T17:47:45.111Z","updatedAt":"2026-10-17T16:28:34.026Z","modules":[{"id":"seed_da74e17c73d4bdef48e2ebe0d48b75eb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"What Is Low-Level Design?","order":1,"contentType":"LEARNING","contentSlug":"what-is-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_778934f0d6849d48df17c1ad6c07e72b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"LLD vs HLD: Understanding the Design Spectrum","order":2,"contentType":"LEARNING","contentSlug":"lld-vs-hld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_95e3d95deccee4b3e3b64cac2d19f2d5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Why Low-Level Design Matters in Software Engineering","order":3,"contentType":"LEARNING","contentSlug":"why-lld-matters","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_094de77501d4b53e2f6f06692188724f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"The LLD Mindset — Thinking in Components","order":4,"contentType":"LEARNING","contentSlug":"lld-mindset-thinking-in-components","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_189f4cfae259fa06e7ded9a2582c6d2c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"LLD in Interviews vs Real-World Projects","order":5,"contentType":"LEARNING","contentSlug":"lld-in-interviews-vs-real-world","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6c846f026ab6f60428f58578dd8553a8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Prerequisites & Learning Path","order":6,"contentType":"LEARNING","contentSlug":"lld-prerequisites-and-learning-path","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_5f10ed873dedc742abcfabbe08d367b5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"From Procedural to Object-Oriented Thinking","order":1,"contentType":"LEARNING","contentSlug":"from-procedural-to-oo","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_46639e27cdc7109390b7ce754380d88b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Identifying Objects in Problem Statements","order":2,"contentType":"LEARNING","contentSlug":"identifying-objects-in-problem-statements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9f5576f9b0d9e2b47c9b5dfc34604ecf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Entities, Attributes, and Behaviors","order":3,"contentType":"LEARNING","contentSlug":"entities-attributes-behaviors","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_eb81cacfbd69c4cbc7654161a604b12e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Relationships Between Objects","order":4,"contentType":"LEARNING","contentSlug":"relationships-between-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_636bd1ad92e89db9396cd1b368eb868f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"State and Behavior Modeling","order":5,"contentType":"LEARNING","contentSlug":"state-and-behavior-modeling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_36d3d57efb9dffdd64a847a234304e2d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Real-World to Code Translation","order":6,"contentType":"LEARNING","contentSlug":"real-world-to-code-translation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_dc7beec34ee4458aee0b87574abf46d1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Why We Need Design Diagrams","order":1,"contentType":"LEARNING","contentSlug":"why-we-need-design-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a1542f810360eee6eefbd9bffc15b3ed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"UML Overview — The Standard Language","order":2,"contentType":"LEARNING","contentSlug":"uml-overview","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_283778a4a6c84cfa10aca570c814a281","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Class Diagrams — Structure Representation","order":3,"contentType":"LEARNING","contentSlug":"class-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9c69001e4a0889eaee6f2ba756e288de","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Relationships: Association, Aggregation, Composition","order":4,"contentType":"LEARNING","contentSlug":"uml-relationships","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_95e6369d513b75eab5ea405d4fdb618f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Sequence Diagrams — Behavior Over Time","order":5,"contentType":"LEARNING","contentSlug":"sequence-diagrams-behavior-over-time","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0ed28be5ecf1baf9f05d40bac9932ca7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Use Case Diagrams — Requirements Capture","order":6,"contentType":"LEARNING","contentSlug":"use-case-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_bf1cae02bf90d7885655b40d7756bb7a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Activity & State Diagrams — Overview","order":7,"contentType":"LEARNING","contentSlug":"activity-state-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_27be8950e0a7ca2b55e789d017759008","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"When to Use Which Diagram","order":8,"contentType":"LEARNING","contentSlug":"when-to-use-which-diagram","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_166823daca2d18635c97caefb96c2e41","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"What Is a Class? What Is an Object?","order":1,"contentType":"LEARNING","contentSlug":"what-is-class-what-is-object","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_322634ed40774e4a77015e0433179d06","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Attributes and Methods","order":2,"contentType":"LEARNING","contentSlug":"attributes-and-methods","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_f6705dbb6228a71e08a4ad4187941ec9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Constructors and Object Lifecycle","order":3,"contentType":"LEARNING","contentSlug":"constructors-and-object-lifecycle","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6b800f95d9a444455534fee651269739","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Access Modifiers and Visibility","order":4,"contentType":"LEARNING","contentSlug":"access-modifiers-visibility","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_dcaea37542bb34f9c16f4c110d57ffb4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Static vs Instance Members","order":5,"contentType":"LEARNING","contentSlug":"static-vs-instance-members","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a3e5332d704341d5c3a9fb945a5378f6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Object Identity, Equality, and Hashing","order":6,"contentType":"LEARNING","contentSlug":"object-identity-equality-hashing","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_474d8467f9840e66de7ddcae3dad112d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Designing Clean Classes: The Art of Well-Structured Object-Oriented Code","order":7,"contentType":"LEARNING","contentSlug":"designing-clean-classes","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_bb27ea6e1969ed891d9e206258f88ad8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"What Is Encapsulation?","order":1,"contentType":"LEARNING","contentSlug":"what-is-encapsulation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9b27cac6c031352578845b4bc3bbef84","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Data Hiding Principles","order":2,"contentType":"LEARNING","contentSlug":"data-hiding-principles","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6a3cd03202849aa2f73df3c833338375","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Getters and Setters — When and Why","order":3,"contentType":"LEARNING","contentSlug":"getters-and-setters-when-and-why","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6c546cfca78f519dd607364bc8c14bf0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Immutable Objects — Unchanging by Design","order":4,"contentType":"LEARNING","contentSlug":"immutable-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_34de1762027e2db0acb12ca78bb5c2cc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Defensive Copying: Preserving Object Integrity","order":5,"contentType":"LEARNING","contentSlug":"defensive-copying","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_60b4909c83f766a2dbf0c4dd01ad31bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Encapsulation in Practice","order":6,"contentType":"LEARNING","contentSlug":"encapsulation-in-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_47dc919f28df10d59a5d56f472412545","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"What Is Inheritance?","order":1,"contentType":"LEARNING","contentSlug":"what-is-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_79f6c0639dbfeb8400a38ce23f02a799","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"The IS-A Relationship: When and Why to Use Inheritance","order":2,"contentType":"LEARNING","contentSlug":"is-a-relationship","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a2d0a67913ddadcd3ad88d6d6c36eab5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Method Overriding","order":3,"contentType":"LEARNING","contentSlug":"method-overriding","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_d85594dc748eccdbea4005e2f40df194","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"The super Keyword and Chain Calls","order":4,"contentType":"LEARNING","contentSlug":"super-keyword-chain-calls","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_97468a185509f26eb4d956c2798f1bf1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Designing Sound Inheritance Hierarchies","order":5,"contentType":"LEARNING","contentSlug":"inheritance-hierarchies-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9bdca43d2315b271e35a2ef8e395b55d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"When Inheritance Goes Wrong","order":6,"contentType":"LEARNING","contentSlug":"when-inheritance-goes-wrong","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_b7cd866ae2fc8c3008e94a6da4e735c5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Abstract Classes — Incomplete Contracts and Partial Implementations","order":7,"contentType":"LEARNING","contentSlug":"abstract-classes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_4e626fb84a410929e4cb3ed05baaad0a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"What Is Polymorphism?","order":1,"contentType":"LEARNING","contentSlug":"what-is-polymorphism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_dedd248652f91e3dcb7f27d95d7a5e7f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Compile-Time vs Runtime Polymorphism","order":2,"contentType":"LEARNING","contentSlug":"compile-time-vs-runtime-polymorphism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a3ed79c43d060af220f5074a8150a9e1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Method Overloading","order":3,"contentType":"LEARNING","contentSlug":"method-overloading","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_da3d93f57df0f222a390ae11845b960f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Method Overriding — The Engine of Runtime Polymorphism","order":4,"contentType":"LEARNING","contentSlug":"method-overriding-revisited","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_71f77ac4a1f0c804e293fb081918cf02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Polymorphism Through Interfaces","order":5,"contentType":"LEARNING","contentSlug":"polymorphism-through-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_168e03dd8b559d363713e2851dd8c0eb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"The Power of Programming to Interfaces","order":6,"contentType":"LEARNING","contentSlug":"programming-to-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_07ce71b316ac60e58a6c1e713d498fc9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Polymorphism Patterns in Practice","order":7,"contentType":"LEARNING","contentSlug":"polymorphism-patterns-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_ab5f84de0eac1b05fd85268689f30bcc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"What Is Abstraction?","order":1,"contentType":"LEARNING","contentSlug":"what-is-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_5fb5b497f96b7fbc6bb53b64300a0ea6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Abstract Classes vs Interfaces","order":2,"contentType":"LEARNING","contentSlug":"abstract-classes-vs-interfaces","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9262b09d5fb81fcb4b3f9fb7553ebfd1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Designing for Abstraction","order":3,"contentType":"LEARNING","contentSlug":"designing-for-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_49c0f381a40c7f1881a5c8eaefe09fe1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Abstraction Levels in System Design","order":4,"contentType":"LEARNING","contentSlug":"abstraction-levels-in-system-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_ca93cf0151c8626319950a591901b385","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"The Cost of Wrong Abstractions","order":5,"contentType":"LEARNING","contentSlug":"cost-of-wrong-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_b06442dfc12620e36515fae550b9e224","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Refactoring Toward Better Abstractions","order":6,"contentType":"LEARNING","contentSlug":"refactoring-toward-better-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_2a008b9deb6fece573c136f5bf4bc3f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Revisiting Inheritance Problems","order":1,"contentType":"LEARNING","contentSlug":"revisiting-inheritance-problems","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a4250aceb61207a618622e21034646ed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"What Is Composition?","order":2,"contentType":"LEARNING","contentSlug":"what-is-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_78c3a03818aca688523d67eda9903eee","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"HAS-A vs IS-A Relationships","order":3,"contentType":"LEARNING","contentSlug":"has-a-vs-is-a-relationships","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_eff66edfca8ce63a1493cbe8b5ecdfe4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Favor Composition Over Inheritance — The Critical Design Choice","order":4,"contentType":"LEARNING","contentSlug":"favor-composition-over-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_e4e090e2eadc2591c0fbed46b19d00de","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Delegation Pattern — Flexible Object Collaboration","order":5,"contentType":"LEARNING","contentSlug":"delegation-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9b2362b64a55d7fae18d22fe9ad7b405","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"When to Use Inheritance vs Composition — Making the Right Choice","order":6,"contentType":"LEARNING","contentSlug":"when-to-use-inheritance-vs-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_157e6272dfce32e59c5c821cdb1412f3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Refactoring from Inheritance to Composition","order":7,"contentType":"LEARNING","contentSlug":"refactoring-from-inheritance-to-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_bb9fdaf79e516d8c2bcae8cfb4d8e191","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Design a Parking Lot System","order":8,"contentType":"LLD","contentSlug":"design-parking-lot","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_aa767c9e0b39089cba1d26c1caf3c8cd","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Design a Library Management System","order":9,"contentType":"LLD","contentSlug":"design-library-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_642acb350127ba73e8e2b2c93d70d8d6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"What Is SRP?","order":1,"contentType":"LEARNING","contentSlug":"what-is-srp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_da8bfe459585ccdf2374cb7147c5c1b8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"What Does 'Responsibility' Really Mean?","order":2,"contentType":"LEARNING","contentSlug":"defining-responsibility","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9d0b3831054181d4a0c5f6f87f1bc2d9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Identifying SRP Violations","order":3,"contentType":"LEARNING","contentSlug":"identifying-srp-violations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a9ef89f46494ff96a73afe97953cae93","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Refactoring for Single Responsibility Principle","order":4,"contentType":"LEARNING","contentSlug":"refactoring-for-srp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_c7bedc6b619c7ee1c77f17f8e8358229","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"SRP at Different Levels","order":5,"contentType":"LEARNING","contentSlug":"srp-at-different-levels","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_95bfe849f9ddcc6c0076426076969a2a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Common SRP Misconceptions","order":6,"contentType":"LEARNING","contentSlug":"common-srp-misconceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9415ae0a8779278d688db261c1c4109a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"What Is OCP?","order":1,"contentType":"LEARNING","contentSlug":"what-is-ocp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a4b65bfd658b5c0a8f6f383f078a35c7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Open for Extension, Closed for Modification","order":2,"contentType":"LEARNING","contentSlug":"open-for-extension-closed-for-modification","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6dfa6d220a95a3b79a8e085ba1cf24b2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Achieving the Open/Closed Principle Through Abstraction","order":3,"contentType":"LEARNING","contentSlug":"achieving-ocp-through-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_5e0af780582da8fb6ed30d16690c6d99","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Strategy Pattern and the Open/Closed Principle","order":4,"contentType":"LEARNING","contentSlug":"strategy-pattern-and-ocp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_3309e375d5681e638818d7c5f6231fed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"OCP Violations and Fixes","order":5,"contentType":"LEARNING","contentSlug":"ocp-violations-and-fixes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_e7c86d7eb27eb5bfd23eb4eddfa8683e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Balancing OCP with Pragmatism","order":6,"contentType":"LEARNING","contentSlug":"balancing-ocp-with-pragmatism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_149fbd04950a5006abe8ac5bfeed2fbf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"What Is LSP?","order":1,"contentType":"LEARNING","contentSlug":"what-is-lsp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_2c8136281afb042aff35d7238abf35ff","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Behavioral Subtyping: Beyond Syntax to Semantics","order":2,"contentType":"LEARNING","contentSlug":"behavioral-subtyping","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_12a824f2010a2a39bea1f374b86f4de7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"The Rectangle-Square Problem: The Canonical LSP Violation","order":3,"contentType":"LEARNING","contentSlug":"rectangle-square-problem","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9c00729cf37512df24e500dbb9d6663d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Preconditions and Postconditions","order":4,"contentType":"LEARNING","contentSlug":"preconditions-and-postconditions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_5ecf1145636cf4fbb2c6ae6bebfd2878","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Invariants in Inheritance","order":5,"contentType":"LEARNING","contentSlug":"invariants-in-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6b3aebf3a5f882aa99b028482211c61b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Detecting and Fixing LSP Violations","order":6,"contentType":"LEARNING","contentSlug":"detecting-fixing-lsp-violations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_2fdc2944580b8c7d569cc44342d8470c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"What Is ISP?","order":1,"contentType":"LEARNING","contentSlug":"what-is-isp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_5ce00075edb0ab3defffddf46d6b83d8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"The Fat Interfaces Problem","order":2,"contentType":"LEARNING","contentSlug":"fat-interfaces-problem","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_4e9482fc4232955821e2ffebbf8fc652","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Role-Based Interface Design","order":3,"contentType":"LEARNING","contentSlug":"role-based-interface-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6a26e140e0dac95832618bc3f197b70d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Splitting Interfaces","order":4,"contentType":"LEARNING","contentSlug":"splitting-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0a8f7dd84dda2f1f32ddab2ab64e8f2e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"ISP and Dependency Management","order":5,"contentType":"LEARNING","contentSlug":"isp-and-dependency-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_49a97270cce660bfa68f89286e3dd5c7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"ISP in Practice","order":6,"contentType":"LEARNING","contentSlug":"isp-in-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_1791bf72fa3546f779c23c8b748a2a5b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"What Is the Dependency Inversion Principle?","order":1,"contentType":"LEARNING","contentSlug":"what-is-dip","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_83a41e4dbe3bbc0a7484e67d8fe7d562","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"High-Level vs Low-Level Modules","order":2,"contentType":"LEARNING","contentSlug":"high-level-vs-low-level-modules","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_addfd929a8fe03e0f40a6413d91f14d8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Depending on Abstractions","order":3,"contentType":"LEARNING","contentSlug":"depending-on-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_4f2678d8fb5cdba2b0bf1d17e8b49216","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Dependency Injection Fundamentals","order":4,"contentType":"LEARNING","contentSlug":"dependency-injection-fundamentals","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_1ec0a952980acc719a9d85ab4798d269","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Inversion of Control Containers","order":5,"contentType":"LEARNING","contentSlug":"ioc-containers","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0e3cb60181dfd928c3ad79f460f06aa9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"DIP and Testability","order":6,"contentType":"LEARNING","contentSlug":"dip-and-testability","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_fc6a2358552f049549aef09b51569132","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"DRY — Don't Repeat Yourself","order":1,"contentType":"LEARNING","contentSlug":"dry-dont-repeat-yourself","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0fb562d83598a8ccf83a92665e3ce628","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"KISS: Keep It Simple, Stupid","order":2,"contentType":"LEARNING","contentSlug":"kiss-keep-it-simple-stupid","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_7179a314876d1b8bdc6d2a8bc3a8b4fc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"YAGNI — You Aren't Gonna Need It","order":3,"contentType":"LEARNING","contentSlug":"yagni-you-arent-gonna-need-it","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_61e01fef0c5b40af0f16e4759311708f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Law of Demeter","order":4,"contentType":"LEARNING","contentSlug":"law-of-demeter","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_49e45ac569851fb42757e87f165a6e0f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"The Principle of Least Astonishment (POLA)","order":5,"contentType":"LEARNING","contentSlug":"principle-of-least-astonishment","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_4a6d82ed9d562c676090d9d490367c24","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Tell, Don't Ask Principle","order":6,"contentType":"LEARNING","contentSlug":"tell-dont-ask","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_76a369e882aff43b6ee5286a37fe7c7e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Separation of Concerns","order":7,"contentType":"LEARNING","contentSlug":"separation-of-concerns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_631c145a428b60d482acab7a6b0428ac","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Cohesion and Coupling","order":8,"contentType":"LEARNING","contentSlug":"cohesion-and-coupling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_4b06b453f50a1fc71e389588b1305e52","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"What Are Design Patterns?","order":1,"contentType":"LEARNING","contentSlug":"what-are-design-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_67b6c8f2ab71b1e3120bfa635ffd01bf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"History and Origins: The Gang of Four","order":2,"contentType":"LEARNING","contentSlug":"history-and-origins","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_3bca43a94769033672a65403ad0fafa6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Pattern Categories: Creational, Structural, Behavioral","order":3,"contentType":"LEARNING","contentSlug":"pattern-categories","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_cd7b5b3149710a382b2113e8e30a906b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"When to Use Design Patterns","order":4,"contentType":"LEARNING","contentSlug":"when-to-use-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_8625d8f0e7e688a575e0ab49b100d4b9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Anti-Patterns and Pattern Abuse","order":5,"contentType":"LEARNING","contentSlug":"anti-patterns-and-pattern-abuse","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_465d789c1fd1b3e7766da17d8ae20d38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Pattern Selection Framework","order":6,"contentType":"LEARNING","contentSlug":"pattern-selection-framework","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_31521a6ae118679015299be83d3f305f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Factory Method Pattern","order":1,"contentType":"LEARNING","contentSlug":"factory-method","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_37c63790d3dcf4acbbf94624f01f1769","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Abstract Factory Pattern","order":2,"contentType":"LEARNING","contentSlug":"abstract-factory-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_2584dcd2d5c64dbc9b90c3f0febd2438","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Builder Pattern","order":3,"contentType":"LEARNING","contentSlug":"builder-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_d67bdb86430e087e0fba938024585543","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Prototype Pattern: Object Cloning for Efficient Creation","order":4,"contentType":"LEARNING","contentSlug":"prototype-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_fcbc07e84e14f4b9ed6263b23222c5e0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Singleton Pattern","order":5,"contentType":"LEARNING","contentSlug":"singleton-pattern","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_c87eef2744d8a3b1951da6085714e871","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Object Pool Pattern — Recycling Resources for Performance","order":6,"contentType":"LEARNING","contentSlug":"object-pool-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_c9cd7c486f9a697a5ec9f274ee3829bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Choosing the Right Creational Pattern","order":7,"contentType":"LEARNING","contentSlug":"choosing-the-right-creational-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_85d14b5bf049691fd059f1fcd42d64b6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Design a Vending Machine","order":8,"contentType":"LLD","contentSlug":"design-vending-machine","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_5c292b371fc38f570dfc30cfc6cf73bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Design a Coffee Vending Machine","order":9,"contentType":"LLD","contentSlug":"design-coffee-vending-machine","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_fc2ea3142f1aa3442a0fe3473b57d54c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Adapter Pattern — Bridging Incompatible Interfaces","order":1,"contentType":"LEARNING","contentSlug":"adapter-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a94f2581c470338713bb59bfb1d73ee5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Bridge Pattern","order":2,"contentType":"LEARNING","contentSlug":"bridge-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_ee8cab08395ba4f631c403c8c7e1fe66","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Composite Pattern","order":3,"contentType":"LEARNING","contentSlug":"composite-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_2083bb0709af82face089b7a29c89c31","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Decorator Pattern","order":4,"contentType":"LEARNING","contentSlug":"decorator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_ecfa3243624bcfe46a56d43f425c94dc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Facade Pattern: Simplifying Complex Subsystems","order":5,"contentType":"LEARNING","contentSlug":"facade-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_c6f8d1fdcf8e6e9875be363a9ea388d4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Flyweight Pattern: Efficient Object Sharing","order":6,"contentType":"LEARNING","contentSlug":"flyweight-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_f9a059902a7c8164f5094b68a19b7774","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Proxy Pattern","order":7,"contentType":"LEARNING","contentSlug":"proxy-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_b301d5919f0a5067a0776f4f94d1874d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Choosing the Right Structural Pattern","order":8,"contentType":"LEARNING","contentSlug":"choosing-structural-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_70632263cf973b25e4fde8517ca67c71","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Strategy Pattern","order":1,"contentType":"LEARNING","contentSlug":"strategy-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_646cb1710a949e774ecd419bc7853aed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Observer Pattern","order":2,"contentType":"LEARNING","contentSlug":"observer-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_dc4f30fe1564a0e10ec0fb62f640ac65","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Command Pattern: Encapsulating Requests as Objects","order":3,"contentType":"LEARNING","contentSlug":"command-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_75df3a4559b3bd3f5f249edc874f6206","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"State Pattern","order":4,"contentType":"LEARNING","contentSlug":"state-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_75cc9337a9b812b9e549e2d263319fc2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Template Method Pattern","order":5,"contentType":"LEARNING","contentSlug":"template-method-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_e3678090f7b3725a84789e969173868b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Iterator Pattern: Uniform Collection Traversal","order":6,"contentType":"LEARNING","contentSlug":"iterator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_473883e14fcdd0c4ce8b55c74802d1fd","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Design a Logging Framework","order":7,"contentType":"LLD","contentSlug":"design-logging-framework","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_37f10842432577556610464660ebf0f1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Design a Traffic Signal Control System","order":8,"contentType":"LLD","contentSlug":"design-traffic-signal","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_67259235515730819246c728dd6fed2a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Design a Task Management System","order":9,"contentType":"LLD","contentSlug":"design-task-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_be8abee8a52cd2646b4092c8cee67783","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Chain of Responsibility Pattern","order":1,"contentType":"LEARNING","contentSlug":"chain-of-responsibility-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9bc98cba340e6bd3c283cb2c5350626c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Mediator Pattern: Centralizing Complex Interactions","order":2,"contentType":"LEARNING","contentSlug":"mediator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_fce610c28bd52a824515914ba0e3b716","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Memento Pattern: State Preservation and Recovery","order":3,"contentType":"LEARNING","contentSlug":"memento-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_d4666190c22b4bd8547cd01477c43183","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Visitor Pattern: Adding Operations Without Modifying Classes","order":4,"contentType":"LEARNING","contentSlug":"visitor-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_12d0863cd076b537b01eea9a7a9487e4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Interpreter Pattern (Overview)","order":5,"contentType":"LEARNING","contentSlug":"interpreter-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_ae2380472c4e2f698a7e70c46cad2a7c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Null Object Pattern: Eliminating Null Reference Chaos","order":6,"contentType":"LEARNING","contentSlug":"null-object-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_494dbe0016c35cd34196f1246971049f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Choosing the Right Behavioral Pattern","order":7,"contentType":"LEARNING","contentSlug":"choosing-behavioral-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_4ad0b9fa09ab13e5f61ca35576a41c6c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Design an ATM","order":8,"contentType":"LLD","contentSlug":"design-atm","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_072c78a8756816c412ea35ba8a68ea64","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Design Tic Tac Toe Game","order":9,"contentType":"LLD","contentSlug":"design-tic-tac-toe","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a13ed02b9160f2e3181b2f200aa66a0e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Design a Snake and Ladder Game","order":10,"contentType":"LLD","contentSlug":"design-snake-and-ladder","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_b514626cfb1a543278fe504ad0fa7d7c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Dependency Injection Revisited","order":1,"contentType":"LEARNING","contentSlug":"dependency-injection-revisited","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9a1e614f6d9d85a73165cd9b03f8836d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Constructor Injection: The Preferred DI Technique","order":2,"contentType":"LEARNING","contentSlug":"constructor-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_98151bb4f7025da1c313c7b6d19dea45","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Setter Injection: Providing Dependencies Through Mutator Methods","order":3,"contentType":"LEARNING","contentSlug":"setter-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_04231ad363d038112c54c0f119c05a46","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Interface Injection","order":4,"contentType":"LEARNING","contentSlug":"interface-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_19d079c1f928d92606c1751a1562a53a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Service Locator vs Dependency Injection","order":5,"contentType":"LEARNING","contentSlug":"service-locator-vs-dependency-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_c3dd4b4411e2db18ab1743670a962a05","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"IoC Container Deep Dive","order":6,"contentType":"LEARNING","contentSlug":"ioc-container-deep-dive","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_7ced201633a0e7cef8e78096bfe4ac79","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Lifetime Management in Dependency Injection","order":7,"contentType":"LEARNING","contentSlug":"lifetime-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_82f189a2b188e10512b5e94ee82e4ca5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"DI Anti-Patterns and Best Practices","order":8,"contentType":"LEARNING","contentSlug":"di-anti-patterns-and-best-practices","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_8cf35d216a3dbd388c9ef97ee2b7c846","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Why Concurrency Matters","order":1,"contentType":"LEARNING","contentSlug":"why-concurrency-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_d1423b163211de48afa68240946de736","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Threads and Processes","order":2,"contentType":"LEARNING","contentSlug":"threads-and-processes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_61cc9efb445be26d5fabe36bcd3e40b6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Thread Safety","order":3,"contentType":"LEARNING","contentSlug":"thread-safety","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_27aa7f16765859c9226c842360339c73","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Synchronization Primitives: Coordinating Concurrent Access","order":4,"contentType":"LEARNING","contentSlug":"synchronization-primitives","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_d22f93b8277eb4c8b5330e74a2de02b0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Deadlocks and Prevention","order":5,"contentType":"LEARNING","contentSlug":"deadlocks-and-prevention","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_c35af1bd0829845a161c5c5cb6bd3e11","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Atomic Operations: The Indivisible Units of Concurrency","order":6,"contentType":"LEARNING","contentSlug":"atomic-operations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_09854d3be0a50ba2093a475a266673ca","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Design Concurrent HashMap","order":7,"contentType":"LLD","contentSlug":"design-concurrent-hashmap","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_43e83cf907a6d96788354a14edd54849","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Design Multi-threaded Merge Sort","order":8,"contentType":"LLD","contentSlug":"design-multithreaded-merge-sort","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_37ea72e10a41e6b6aa877126af078a04","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Producer-Consumer Pattern","order":1,"contentType":"LEARNING","contentSlug":"producer-consumer-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_64280f44c445925c5fc9b746d05d71e8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Thread Pool Pattern","order":2,"contentType":"LEARNING","contentSlug":"thread-pool-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_185a4364516655a64d39728fdcd18385","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Read-Write Lock Pattern","order":3,"contentType":"LEARNING","contentSlug":"read-write-lock-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_82c2701d283cc74f9716a92777746e49","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Future and Promise Pattern","order":4,"contentType":"LEARNING","contentSlug":"future-promise-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_ac1a1c58001d5fc8b2ed7e84bd276221","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Double-Checked Locking Pattern","order":5,"contentType":"LEARNING","contentSlug":"double-checked-locking","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_8173ee638491556066a373ae80c7d07a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Immutable Objects for Concurrency","order":6,"contentType":"LEARNING","contentSlug":"immutable-objects-for-concurrency","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_70367bbd38860adf1d607c3e50d5904d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Active Object Pattern","order":7,"contentType":"LEARNING","contentSlug":"active-object-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_80c77beb1977cf6d475ed94780b32e67","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Design Thread-Safe Blocking Queue","order":8,"contentType":"LLD","contentSlug":"design-blocking-queue","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_16105ef64dcb05107f32c9b88485f3a5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Design an Elevator System","order":9,"contentType":"LLD","contentSlug":"design-elevator-system","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_2bd3cfba0e7efdc56d467d2d99c2c422","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Introduction to Domain-Driven Design","order":1,"contentType":"LEARNING","contentSlug":"introduction-to-ddd","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_22433df8915d434869882c61cb90adaa","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Entities in Domain-Driven Design","order":2,"contentType":"LEARNING","contentSlug":"entities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_5705fb8dc1875652a4884ff128bf57f3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Value Objects in Domain-Driven Design","order":3,"contentType":"LEARNING","contentSlug":"ddd-value-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_46b012310328e6b9eff4307e9f45b037","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Aggregates: Modeling Consistency Boundaries","order":4,"contentType":"LEARNING","contentSlug":"ddd/aggregates","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_74503f636a680ff917bda14b7396a9ac","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Repositories","order":5,"contentType":"LEARNING","contentSlug":"ddd-repositories","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0e4408f53c5f89c5597031c848a8cce8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Domain Events","order":6,"contentType":"LEARNING","contentSlug":"lld-domain-driven-design-domain-events","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6d280f72b9c1345121ea5551b247b5cf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Domain Services in Domain-Driven Design","order":7,"contentType":"LEARNING","contentSlug":"domain-services","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_b056fdc7aaf01d3d0a66f5e54b9eb2da","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Bounded Contexts","order":8,"contentType":"LEARNING","contentSlug":"ddd-bounded-contexts","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_6a4713527b6165ab4ac05c3e03902c7a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Design a Car Rental System","order":9,"contentType":"LLD","contentSlug":"design-car-rental","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_f531aac070e6298aec92871d90734be6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Design a Hotel Management System","order":10,"contentType":"LLD","contentSlug":"design-hotel-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_038c7d43f885c4fac5122b3c0b7028f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Design a Digital Wallet Service","order":11,"contentType":"LLD","contentSlug":"design-digital-wallet","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_fa27eb23a13bb3d4f36bba209d652445","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Design a Restaurant Management System","order":12,"contentType":"LLD","contentSlug":"design-restaurant-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_e969405d3072826fe3288b0faed809a6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Why Architecture Matters","order":1,"contentType":"LEARNING","contentSlug":"why-architecture-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_9d88a999847f23611ddf1f33560c7b85","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Traditional Layered Architecture","order":2,"contentType":"LEARNING","contentSlug":"traditional-layered-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_87776ac6b08a2cf2dee32ce800992d94","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Hexagonal Architecture (Ports & Adapters)","order":3,"contentType":"LEARNING","contentSlug":"hexagonal-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_e36d409ac217efeb3bd628f702a4183b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Onion Architecture: Domain-Centric System Design","order":4,"contentType":"LEARNING","contentSlug":"onion-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_900e5754b9841ac60ab72998bb78ec1a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Clean Architecture","order":5,"contentType":"LEARNING","contentSlug":"clean-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_47eac867e3933c50925f76a2d5126e1d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Choosing an Architecture","order":6,"contentType":"LEARNING","contentSlug":"choosing-an-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_195c934cc23a12776a5750015e53d3a4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Package and Module Organization","order":7,"contentType":"LEARNING","contentSlug":"package-module-organization","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_d7bbee67563121e8eac197c6b87d4448","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"What Is a Good API?","order":1,"contentType":"LEARNING","contentSlug":"what-is-a-good-api","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0568d519482b1bc1d4ac631c2e07601e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Method Signature Design","order":2,"contentType":"LEARNING","contentSlug":"method-signature-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_f8350b1533548ee392cba6848ef6fd41","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Error Handling in APIs","order":3,"contentType":"LEARNING","contentSlug":"error-handling-in-apis","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_591ee39701eb3dbdeb8317a46f343918","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"API Versioning","order":4,"contentType":"LEARNING","contentSlug":"lld-api-versioning","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_283d4e739aa1cad00c72f68973fa990d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"RESTful API Design Principles","order":5,"contentType":"LEARNING","contentSlug":"restful-api-design-principles","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_ff0cf622c7e78232d3aff5b8627dbe15","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Data Transfer Object (DTO) Design","order":6,"contentType":"LEARNING","contentSlug":"dto-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_58122aff377e2df7afa4cbde77d60384","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"API Documentation","order":7,"contentType":"LEARNING","contentSlug":"lld-api-documentation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_b4510f16e895b628bec703e1c44bb548","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Persistence Layer Responsibilities","order":1,"contentType":"LEARNING","contentSlug":"persistence-layer-responsibilities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_dc4603e10f4c03575065d7c01f8b9e18","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Repository Pattern Deep Dive","order":2,"contentType":"LEARNING","contentSlug":"repository-pattern-deep-dive","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_87bb1cc41328a11ed417c0934effa700","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Data Access Object (DAO) Pattern","order":3,"contentType":"LEARNING","contentSlug":"dao-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_d8528ff184ec6d80f953cc86dff376d7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Unit of Work Pattern","order":4,"contentType":"LEARNING","contentSlug":"unit-of-work-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_c98805d55ac5cb5e70498370a1223eba","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Object-Relational Mapping Considerations","order":5,"contentType":"LEARNING","contentSlug":"orm-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0281bee3cbc4ea9b5fe9a5441b08068b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Data Modeling for Low-Level Design","order":6,"contentType":"LEARNING","contentSlug":"data-modeling-for-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_4962bf5ab4784167e4ee6f1a693379ca","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Database Transactions at LLD Level","order":7,"contentType":"LEARNING","contentSlug":"database-transactions-at-lld-level","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_f20f6b27dbeb9d4966123c8bb4fc6beb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"An unsuccessful credit capture changes account balances","order":8,"contentType":"REPO","contentSlug":"credit-reservations-capture-recovery","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_8f24fa2fa8f94d1d99441c1feef176e5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Capture reserved credit only once","order":9,"contentType":"CODE_REVIEW","contentSlug":"credit-reservations-review-capture-recovery","description":null,"estimatedMins":35,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_bea5f9bc1d6e29035e6e8e5dbbffc261","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Why Caching Matters","order":1,"contentType":"LEARNING","contentSlug":"lld-why-caching-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_10ef959e8938013bc82b751fc288c095","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Patterns","order":2,"contentType":"LEARNING","contentSlug":"cache-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0d28bdca3ae62b9f4e68fd8bcd4edb8d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Design Considerations","order":3,"contentType":"LEARNING","contentSlug":"cache-design-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_a424d8b598bb6cca682da8a79b89aed3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Testing and Monitoring","order":4,"contentType":"LEARNING","contentSlug":"cache-testing-and-monitoring","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_3d9e2b3a0c8dccfe15a2a2bf8980df75","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Design an LRU Cache","order":5,"contentType":"LLD","contentSlug":"design-lru-cache","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_0c61d1d0e0f07e5de49b3d0a141b3841","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Design Thread-Safe Cache with TTL","order":6,"contentType":"LLD","contentSlug":"design-cache-with-ttl","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_47ea1e7295fe4da5c0272836594bc6ab","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Design Concurrent Bloom Filter","order":7,"contentType":"LLD","contentSlug":"design-bloom-filter","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_4b3cd8a6c5cc668e960c80db504cef49","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies Lld","sectionOrder":29,"title":"Cache Invalidation Strategies","order":1,"contentType":"LEARNING","contentSlug":"lld-cache-invalidation-strategies","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_49efc881b04b3a49d57201aa5dd4ea32","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies Lld","sectionOrder":29,"title":"Caching in Object Design","order":2,"contentType":"LEARNING","contentSlug":"caching-in-object-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_b82e80ae95c58d41ffe5c6870b9b59f2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Introduction to Event-Driven Design","order":1,"contentType":"LEARNING","contentSlug":"introduction-to-event-driven-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_8f79c7e0b23b60ea393ad98d03690b38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Domain Events","order":2,"contentType":"LEARNING","contentSlug":"lld-event-driven-design-domain-events","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_06bbd72d0bb249a33271106d683547fd","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Handlers","order":3,"contentType":"LEARNING","contentSlug":"event-handlers","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_b2e883e2e24a18967d8a348011cfee38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Publish-Subscribe Pattern","order":4,"contentType":"LEARNING","contentSlug":"publish-subscribe-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_109ac57bdeca7226070a67990d371774","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Sourcing Basics","order":5,"contentType":"LEARNING","contentSlug":"event-sourcing-basics","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_8d837d5960373ce745a8f934a8c7ca36","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event-Driven Integration","order":6,"contentType":"LEARNING","contentSlug":"event-driven-integration","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_ed06adfc099b4102e2b52095d918f083","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Testing Event-Driven Designs","order":7,"contentType":"LEARNING","contentSlug":"testing-event-driven-designs","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_043b0c1db291f6c532207168f843b506","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Design a Pub Sub System","order":8,"contentType":"LLD","contentSlug":"design-pub-sub","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_c1ad9b422bfa797c7b9e020e99593a13","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"What Is Resource Management?","order":1,"contentType":"LEARNING","contentSlug":"what-is-resource-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z"},{"id":"seed_f5f13bebb6d4c714f5a01df235277b70","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Object Lifecycle Management","order":2,"contentType":"LEARNING","contentSlug":"object-lifecycle-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_8d20adecb3526f7ee11180a1e9c34eb1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Disposable Pattern","order":3,"contentType":"LEARNING","contentSlug":"disposable-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_cf0472cf09370350a71f37aa0aa85cd8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Connection Pooling","order":4,"contentType":"LEARNING","contentSlug":"lld-connection-pooling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_b0764df0bb8da458e56a2b2294848694","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Memory Management Considerations","order":5,"contentType":"LEARNING","contentSlug":"memory-management-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_f19607253ce9792bb396e69a77eed032","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Resource Acquisition Patterns","order":6,"contentType":"LEARNING","contentSlug":"resource-acquisition-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_1605a58580415b26519b63986566f30e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Testing Resource Management","order":7,"contentType":"LEARNING","contentSlug":"testing-resource-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_4f4f61713f44a4748f5dcacd7704044d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Errors vs Exceptions: Foundations of Robust Error Handling","order":1,"contentType":"LEARNING","contentSlug":"errors-vs-exceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_f139140e44bc8284f3283f15b28c6789","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Exception Hierarchy Design","order":2,"contentType":"LEARNING","contentSlug":"exception-hierarchy-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_59376056950b4eb77ae473f68b7e84f9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Checked vs Unchecked Exceptions","order":3,"contentType":"LEARNING","contentSlug":"checked-vs-unchecked-exceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_90284d6a08cbb23a1d229a429e4d2be1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Error States and Result Types","order":4,"contentType":"LEARNING","contentSlug":"error-states-and-result-types","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_1eff0831eadd7f32c8dc4eaefea7dbad","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Exception Handling Best Practices","order":5,"contentType":"LEARNING","contentSlug":"exception-handling-best-practices","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_9c292ae3f643e1f08e1ee54aa95a8e58","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Validation and Defensive Programming","order":6,"contentType":"LEARNING","contentSlug":"validation-and-defensive-programming","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_f20ac222f72ba6bea1f48655fcdfa8d2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Error Handling at Boundaries","order":7,"contentType":"LEARNING","contentSlug":"error-handling-at-boundaries","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_9393b1e2d6f9a9c79d8a003c70d15aed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Failed release journals leave a partially published room","order":8,"contentType":"REPO","contentSlug":"release-room-journal-recovery","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_550ab092a467e967b05d297c7f0dd4f8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Isolate the editorial transaction draft","order":9,"contentType":"CODE_REVIEW","contentSlug":"release-room-review-journal-recovery","description":null,"estimatedMins":35,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_f7e1e7a381aa053c8ed9cf96ae771aee","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Why Testing Matters for Low-Level Design","order":1,"contentType":"LEARNING","contentSlug":"why-testing-matters-for-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_40ff9cee014cb4b748bc0a1344050c02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Unit Testing Fundamentals","order":2,"contentType":"LEARNING","contentSlug":"unit-testing-fundamentals","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_069c54679b4961f071407080de0a8040","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Test Doubles: Mocks, Stubs, Fakes","order":3,"contentType":"LEARNING","contentSlug":"test-doubles-mocks-stubs-fakes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_0650cdf2c09e6c2dd19ea812fa05f4b5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Mocking Dependencies in Object-Oriented Testing","order":4,"contentType":"LEARNING","contentSlug":"mocking-dependencies","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_4b048089a091123945ef416a1705bc45","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Test-Driven Development (TDD)","order":5,"contentType":"LEARNING","contentSlug":"test-driven-development-tdd","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_2b456057eff2dfda7b9bb70fcf99e109","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Testing Private Methods and Internals","order":6,"contentType":"LEARNING","contentSlug":"testing-private-methods-and-internals","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_ad95c3a9dddba788da8eed039a3c9910","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Integration Testing at LLD Level","order":7,"contentType":"LEARNING","contentSlug":"integration-testing-at-lld-level","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_deff3612e1ba63663931076321b23df5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Code Coverage and Test Quality","order":8,"contentType":"LEARNING","contentSlug":"code-coverage-and-test-quality","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_329cabc38fa5e676c4628cacb15fdbaa","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Temporary access remains valid at its expiry time","order":9,"contentType":"REPO","contentSlug":"access-desk-expiry-boundary","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_40a72c7e212d91d4fb1b3065bb5f7d02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Expire access at the deadline","order":10,"contentType":"CODE_REVIEW","contentSlug":"access-desk-review-expiry-boundary","description":null,"estimatedMins":35,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_1861177da832c9f94511a739d5aa211a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Logging in Low-Level Design","order":1,"contentType":"LEARNING","contentSlug":"logging-in-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_6b82f19778d58182faafc6495ed4ceec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Observability Design","order":2,"contentType":"LEARNING","contentSlug":"observability-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_b57dcef5420a9f6d1d2a06a59a78bbec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Security Patterns in Low-Level Design","order":3,"contentType":"LEARNING","contentSlug":"security-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_9fb8d235292aa1c55ffc4bf05f3f8087","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Secrets Management","order":4,"contentType":"LEARNING","contentSlug":"lld-secrets-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_97047b89732bd7130a4166bd65e49aec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Configuration Management","order":5,"contentType":"LEARNING","contentSlug":"lld-configuration-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_c293605b7667addc3a6d06d7c0659149","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Feature Flags: Dynamic Control of Software Behavior","order":6,"contentType":"LEARNING","contentSlug":"feature-flags","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_5d9b697b8efe24331d37db4008e5f71e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Understanding LLD Problem Statements","order":1,"contentType":"LEARNING","contentSlug":"understanding-lld-problem-statements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_558782d3e1900dffcf12c15d3cb0fa4b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Gathering Requirements","order":2,"contentType":"LEARNING","contentSlug":"gathering-requirements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_5a219cc7ca52fa64076fa1f99b67d702","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Identifying Core Entities","order":3,"contentType":"LEARNING","contentSlug":"identifying-core-entities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_1e025dbbd91b0b0373f17ae00089dad8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Defining Relationships in Low-Level Design","order":4,"contentType":"LEARNING","contentSlug":"defining-relationships","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_4f4fe161105fd25a5d33b47a7454fbd2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Applying Design Patterns in LLD","order":5,"contentType":"LEARNING","contentSlug":"applying-design-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_cc1d1a47d75fc356a9e5ddcb53b8f1a4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Validating the Design","order":6,"contentType":"LEARNING","contentSlug":"validating-the-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_2dcaf667097c2de0587d815d4de1c9a7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Iterating and Refining Designs","order":7,"contentType":"LEARNING","contentSlug":"iterating-and-refining","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_822e239d3c3560d84663d1090db0aba6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Case Study: Parking Lot System Design","order":1,"contentType":"LEARNING","contentSlug":"parking-lot-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_84f756f5d53c5103e5562ab995bf1cf9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Library Management System","order":2,"contentType":"LEARNING","contentSlug":"library-management-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_641e4a13c52b22fcc8b25278fbdb826e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Elevator System Design","order":3,"contentType":"LEARNING","contentSlug":"elevator-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_52d436178e0c7535ce8be37bba0f8972","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Chess Game - Low Level Design","order":4,"contentType":"LEARNING","contentSlug":"chess-game","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_850de741c37d894c0fce9b96bad6ed0f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Case Study: Ride-Sharing Service Design","order":5,"contentType":"LEARNING","contentSlug":"ride-sharing-service","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_8ee6ebe6ec8f19bb0dfba0f25657576d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Hotel Booking System","order":6,"contentType":"LEARNING","contentSlug":"hotel-booking-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_5b259c5d0f3176d625307799bbe11e98","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Stack Overflow","order":7,"contentType":"LLD","contentSlug":"design-stack-overflow","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_937f9a51f4f24d7b16df163fc14c9bb0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design LinkedIn","order":8,"contentType":"LLD","contentSlug":"design-linkedin","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_0b745e9a66b9e3f1f7432167fabfa782","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design an Online Auction System","order":9,"contentType":"LLD","contentSlug":"design-online-auction","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_2e3bb7875ad4b444c6b692d4a11a1677","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design an Airline Management System","order":10,"contentType":"LLD","contentSlug":"design-airline-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_58c1f2ceef69f589aecdb226f25fecc5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Facebook","order":11,"contentType":"LLD","contentSlug":"design-facebook","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_4a2d6b36691238b41a1037845f53786c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design a Concert Ticket Booking System","order":12,"contentType":"LLD","contentSlug":"design-concert-ticket-booking","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_981bd424f35aa5fe75f3a03e23c4e43b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design CricInfo","order":13,"contentType":"LLD","contentSlug":"design-cricinfo","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_1ab990407ae950129ea6903b74a960a6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Splitwise","order":14,"contentType":"LLD","contentSlug":"design-splitwise","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_5307dae41716854ccdf6fc48f6b284f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design a Chess Game","order":15,"contentType":"LLD","contentSlug":"design-chess-game","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_bd37aa6c753889b7b309b59ea3b64489","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Uber","order":16,"contentType":"LLD","contentSlug":"design-uber","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_d80f4189c64a26a2fdfffae37ddf7c88","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design a Course Registration System","order":17,"contentType":"LLD","contentSlug":"design-course-registration-system","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_9aec4fc0a69655520f73944c46ff36d9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design a Movie Ticket Booking System","order":18,"contentType":"LLD","contentSlug":"design-movie-ticket-booking-system","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_360b0cc966c574a33575dafc88804cfc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Amazon","order":19,"contentType":"LLD","contentSlug":"design-amazon","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_b911ffee279a7df1672e7630b3a35c2d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Zerodha","order":20,"contentType":"LLD","contentSlug":"design-zerodha","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_73c73e569df8b0ffc490fa81fc7a27c4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Spotify","order":21,"contentType":"LLD","contentSlug":"design-spotify","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_2330697eb513e815a379c2c5b77414f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Swiggy","order":22,"contentType":"LLD","contentSlug":"design-swiggy","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_4259da5e2ba0b0c3cdaa93d220770d09","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"What Interviewers Look For in LLD Interviews","order":1,"contentType":"LEARNING","contentSlug":"lld-what-interviewers-look-for","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_0e8caf0f2da03d1990014db94d064783","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Time Management in LLD Interviews","order":2,"contentType":"LEARNING","contentSlug":"time-management-lld-interviews","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_c16aca79dcb218e6fa6f6169da9265ba","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Clarifying Requirements in LLD Interviews","order":3,"contentType":"LEARNING","contentSlug":"lld-clarifying-requirements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_969e788846442d00cb875e8721a1e893","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Communicating Your Design","order":4,"contentType":"LEARNING","contentSlug":"communicating-your-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_c967003be2a3233b7b309d08a0de2a04","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Handling Constraints & Trade-offs in LLD Interviews","order":5,"contentType":"LEARNING","contentSlug":"handling-constraints-trade-offs","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_ddbe0c6f5048d91649789374b53ce876","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Common LLD Interview Problems","order":6,"contentType":"LEARNING","contentSlug":"common-lld-interview-problems","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_00f30fd2acf005d93c84abdf67352391","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"From Design to Code","order":7,"contentType":"LEARNING","contentSlug":"from-design-to-code","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_4d94ab5db9fb0da5746416f8f10850c9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Code Organization & Structure","order":8,"contentType":"LEARNING","contentSlug":"code-organization-structure","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_e0db266c4e4e3a884790a41d83d3020b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Refactoring Toward Better Design","order":9,"contentType":"LEARNING","contentSlug":"refactoring-toward-better-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"},{"id":"seed_f268ce96bbb53953310e265b7e8ab7b9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Continuous Learning in Low-Level Design","order":10,"contentType":"LEARNING","contentSlug":"continuous-learning","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z"}],"sections":[{"title":"Chapter 1: Introduction To Lld","order":1,"modules":["$46:props:state:queries:0:state:data:json:modules:0","$46:props:state:queries:0:state:data:json:modules:1","$46:props:state:queries:0:state:data:json:modules:2","$46:props:state:queries:0:state:data:json:modules:3","$46:props:state:queries:0:state:data:json:modules:4","$46:props:state:queries:0:state:data:json:modules:5"]},{"title":"Chapter 2: Thinking In Objects","order":2,"modules":["$46:props:state:queries:0:state:data:json:modules:6","$46:props:state:queries:0:state:data:json:modules:7","$46:props:state:queries:0:state:data:json:modules:8","$46:props:state:queries:0:state:data:json:modules:9","$46:props:state:queries:0:state:data:json:modules:10","$46:props:state:queries:0:state:data:json:modules:11"]},{"title":"Chapter 3: Uml Design Representation","order":3,"modules":["$46:props:state:queries:0:state:data:json:modules:12","$46:props:state:queries:0:state:data:json:modules:13","$46:props:state:queries:0:state:data:json:modules:14","$46:props:state:queries:0:state:data:json:modules:15","$46:props:state:queries:0:state:data:json:modules:16","$46:props:state:queries:0:state:data:json:modules:17","$46:props:state:queries:0:state:data:json:modules:18","$46:props:state:queries:0:state:data:json:modules:19"]},{"title":"Chapter 4: Classes Objects The Building Blocks","order":4,"modules":["$46:props:state:queries:0:state:data:json:modules:20","$46:props:state:queries:0:state:data:json:modules:21","$46:props:state:queries:0:state:data:json:modules:22","$46:props:state:queries:0:state:data:json:modules:23","$46:props:state:queries:0:state:data:json:modules:24","$46:props:state:queries:0:state:data:json:modules:25","$46:props:state:queries:0:state:data:json:modules:26"]},{"title":"Chapter 5: Encapsulation Protecting Data Behavior","order":5,"modules":["$46:props:state:queries:0:state:data:json:modules:27","$46:props:state:queries:0:state:data:json:modules:28","$46:props:state:queries:0:state:data:json:modules:29","$46:props:state:queries:0:state:data:json:modules:30","$46:props:state:queries:0:state:data:json:modules:31","$46:props:state:queries:0:state:data:json:modules:32"]},{"title":"Chapter 6: Inheritance Reuse Hierarchies","order":6,"modules":["$46:props:state:queries:0:state:data:json:modules:33","$46:props:state:queries:0:state:data:json:modules:34","$46:props:state:queries:0:state:data:json:modules:35","$46:props:state:queries:0:state:data:json:modules:36","$46:props:state:queries:0:state:data:json:modules:37","$46:props:state:queries:0:state:data:json:modules:38","$46:props:state:queries:0:state:data:json:modules:39"]},{"title":"Chapter 7: Polymorphism Flexible Behavior","order":7,"modules":["$46:props:state:queries:0:state:data:json:modules:40","$46:props:state:queries:0:state:data:json:modules:41","$46:props:state:queries:0:state:data:json:modules:42","$46:props:state:queries:0:state:data:json:modules:43","$46:props:state:queries:0:state:data:json:modules:44","$46:props:state:queries:0:state:data:json:modules:45","$46:props:state:queries:0:state:data:json:modules:46"]},{"title":"Chapter 8: Abstraction Managing Complexity","order":8,"modules":["$46:props:state:queries:0:state:data:json:modules:47","$46:props:state:queries:0:state:data:json:modules:48","$46:props:state:queries:0:state:data:json:modules:49","$46:props:state:queries:0:state:data:json:modules:50","$46:props:state:queries:0:state:data:json:modules:51","$46:props:state:queries:0:state:data:json:modules:52"]},{"title":"Chapter 9: Composition Vs Inheritance","order":9,"modules":["$46:props:state:queries:0:state:data:json:modules:53","$46:props:state:queries:0:state:data:json:modules:54","$46:props:state:queries:0:state:data:json:modules:55","$46:props:state:queries:0:state:data:json:modules:56","$46:props:state:queries:0:state:data:json:modules:57","$46:props:state:queries:0:state:data:json:modules:58","$46:props:state:queries:0:state:data:json:modules:59","$46:props:state:queries:0:state:data:json:modules:60","$46:props:state:queries:0:state:data:json:modules:61"]},{"title":"Chapter 10: Single Responsibility Principle","order":10,"modules":["$46:props:state:queries:0:state:data:json:modules:62","$46:props:state:queries:0:state:data:json:modules:63","$46:props:state:queries:0:state:data:json:modules:64","$46:props:state:queries:0:state:data:json:modules:65","$46:props:state:queries:0:state:data:json:modules:66","$46:props:state:queries:0:state:data:json:modules:67"]},{"title":"Chapter 11: Open Closed Principle","order":11,"modules":["$46:props:state:queries:0:state:data:json:modules:68","$46:props:state:queries:0:state:data:json:modules:69","$46:props:state:queries:0:state:data:json:modules:70","$46:props:state:queries:0:state:data:json:modules:71","$46:props:state:queries:0:state:data:json:modules:72","$46:props:state:queries:0:state:data:json:modules:73"]},{"title":"Chapter 12: Liskov Substitution Principle","order":12,"modules":["$46:props:state:queries:0:state:data:json:modules:74","$46:props:state:queries:0:state:data:json:modules:75","$46:props:state:queries:0:state:data:json:modules:76","$46:props:state:queries:0:state:data:json:modules:77","$46:props:state:queries:0:state:data:json:modules:78","$46:props:state:queries:0:state:data:json:modules:79"]},{"title":"Chapter 13: Interface Segregation Principle","order":13,"modules":["$46:props:state:queries:0:state:data:json:modules:80","$46:props:state:queries:0:state:data:json:modules:81","$46:props:state:queries:0:state:data:json:modules:82","$46:props:state:queries:0:state:data:json:modules:83","$46:props:state:queries:0:state:data:json:modules:84","$46:props:state:queries:0:state:data:json:modules:85"]},{"title":"Chapter 14: Dependency Inversion Principle","order":14,"modules":["$46:props:state:queries:0:state:data:json:modules:86","$46:props:state:queries:0:state:data:json:modules:87","$46:props:state:queries:0:state:data:json:modules:88","$46:props:state:queries:0:state:data:json:modules:89","$46:props:state:queries:0:state:data:json:modules:90","$46:props:state:queries:0:state:data:json:modules:91"]},{"title":"Chapter 15: Other Essential Design Principles","order":15,"modules":["$46:props:state:queries:0:state:data:json:modules:92","$46:props:state:queries:0:state:data:json:modules:93","$46:props:state:queries:0:state:data:json:modules:94","$46:props:state:queries:0:state:data:json:modules:95","$46:props:state:queries:0:state:data:json:modules:96","$46:props:state:queries:0:state:data:json:modules:97","$46:props:state:queries:0:state:data:json:modules:98","$46:props:state:queries:0:state:data:json:modules:99"]},{"title":"Chapter 16: Introduction To Design Patterns","order":16,"modules":["$46:props:state:queries:0:state:data:json:modules:100","$46:props:state:queries:0:state:data:json:modules:101","$46:props:state:queries:0:state:data:json:modules:102","$46:props:state:queries:0:state:data:json:modules:103","$46:props:state:queries:0:state:data:json:modules:104","$46:props:state:queries:0:state:data:json:modules:105"]},{"title":"Chapter 17: Creational Patterns","order":17,"modules":["$46:props:state:queries:0:state:data:json:modules:106","$46:props:state:queries:0:state:data:json:modules:107","$46:props:state:queries:0:state:data:json:modules:108","$46:props:state:queries:0:state:data:json:modules:109","$46:props:state:queries:0:state:data:json:modules:110","$46:props:state:queries:0:state:data:json:modules:111","$46:props:state:queries:0:state:data:json:modules:112","$46:props:state:queries:0:state:data:json:modules:113","$46:props:state:queries:0:state:data:json:modules:114"]},{"title":"Chapter 18: Structural Patterns","order":18,"modules":["$46:props:state:queries:0:state:data:json:modules:115","$46:props:state:queries:0:state:data:json:modules:116","$46:props:state:queries:0:state:data:json:modules:117","$46:props:state:queries:0:state:data:json:modules:118","$46:props:state:queries:0:state:data:json:modules:119","$46:props:state:queries:0:state:data:json:modules:120","$46:props:state:queries:0:state:data:json:modules:121","$46:props:state:queries:0:state:data:json:modules:122"]},{"title":"Chapter 19: Behavioral Patterns Part 1","order":19,"modules":["$46:props:state:queries:0:state:data:json:modules:123","$46:props:state:queries:0:state:data:json:modules:124","$46:props:state:queries:0:state:data:json:modules:125","$46:props:state:queries:0:state:data:json:modules:126","$46:props:state:queries:0:state:data:json:modules:127","$46:props:state:queries:0:state:data:json:modules:128","$46:props:state:queries:0:state:data:json:modules:129","$46:props:state:queries:0:state:data:json:modules:130","$46:props:state:queries:0:state:data:json:modules:131"]},{"title":"Chapter 20: Behavioral Patterns Part 2","order":20,"modules":["$46:props:state:queries:0:state:data:json:modules:132","$46:props:state:queries:0:state:data:json:modules:133","$46:props:state:queries:0:state:data:json:modules:134","$46:props:state:queries:0:state:data:json:modules:135","$46:props:state:queries:0:state:data:json:modules:136","$46:props:state:queries:0:state:data:json:modules:137","$46:props:state:queries:0:state:data:json:modules:138","$46:props:state:queries:0:state:data:json:modules:139","$46:props:state:queries:0:state:data:json:modules:140","$46:props:state:queries:0:state:data:json:modules:141"]},{"title":"Chapter 21: Dependency Injection Deep Dive","order":21,"modules":["$46:props:state:queries:0:state:data:json:modules:142","$46:props:state:queries:0:state:data:json:modules:143","$46:props:state:queries:0:state:data:json:modules:144","$46:props:state:queries:0:state:data:json:modules:145","$46:props:state:queries:0:state:data:json:modules:146","$46:props:state:queries:0:state:data:json:modules:147","$46:props:state:queries:0:state:data:json:modules:148","$46:props:state:queries:0:state:data:json:modules:149"]},{"title":"Chapter 22: Concurrency Fundamentals","order":22,"modules":["$46:props:state:queries:0:state:data:json:modules:150","$46:props:state:queries:0:state:data:json:modules:151","$46:props:state:queries:0:state:data:json:modules:152","$46:props:state:queries:0:state:data:json:modules:153","$46:props:state:queries:0:state:data:json:modules:154","$46:props:state:queries:0:state:data:json:modules:155","$46:props:state:queries:0:state:data:json:modules:156","$46:props:state:queries:0:state:data:json:modules:157"]},{"title":"Chapter 23: Concurrency Patterns","order":23,"modules":["$46:props:state:queries:0:state:data:json:modules:158","$46:props:state:queries:0:state:data:json:modules:159","$46:props:state:queries:0:state:data:json:modules:160","$46:props:state:queries:0:state:data:json:modules:161","$46:props:state:queries:0:state:data:json:modules:162","$46:props:state:queries:0:state:data:json:modules:163","$46:props:state:queries:0:state:data:json:modules:164","$46:props:state:queries:0:state:data:json:modules:165","$46:props:state:queries:0:state:data:json:modules:166"]},{"title":"Chapter 24: Domain Driven Design","order":24,"modules":["$46:props:state:queries:0:state:data:json:modules:167","$46:props:state:queries:0:state:data:json:modules:168","$46:props:state:queries:0:state:data:json:modules:169","$46:props:state:queries:0:state:data:json:modules:170","$46:props:state:queries:0:state:data:json:modules:171","$46:props:state:queries:0:state:data:json:modules:172","$46:props:state:queries:0:state:data:json:modules:173","$46:props:state:queries:0:state:data:json:modules:174","$46:props:state:queries:0:state:data:json:modules:175","$46:props:state:queries:0:state:data:json:modules:176","$46:props:state:queries:0:state:data:json:modules:177","$46:props:state:queries:0:state:data:json:modules:178"]},{"title":"Chapter 25: Clean Layered Architecture","order":25,"modules":["$46:props:state:queries:0:state:data:json:modules:179","$46:props:state:queries:0:state:data:json:modules:180","$46:props:state:queries:0:state:data:json:modules:181","$46:props:state:queries:0:state:data:json:modules:182","$46:props:state:queries:0:state:data:json:modules:183","$46:props:state:queries:0:state:data:json:modules:184","$46:props:state:queries:0:state:data:json:modules:185"]},{"title":"Chapter 26: Api Interface Design","order":26,"modules":["$46:props:state:queries:0:state:data:json:modules:186","$46:props:state:queries:0:state:data:json:modules:187","$46:props:state:queries:0:state:data:json:modules:188","$46:props:state:queries:0:state:data:json:modules:189","$46:props:state:queries:0:state:data:json:modules:190","$46:props:state:queries:0:state:data:json:modules:191","$46:props:state:queries:0:state:data:json:modules:192"]},{"title":"Chapter 27: Persistence Layer Design","order":27,"modules":["$46:props:state:queries:0:state:data:json:modules:193","$46:props:state:queries:0:state:data:json:modules:194","$46:props:state:queries:0:state:data:json:modules:195","$46:props:state:queries:0:state:data:json:modules:196","$46:props:state:queries:0:state:data:json:modules:197","$46:props:state:queries:0:state:data:json:modules:198","$46:props:state:queries:0:state:data:json:modules:199","$46:props:state:queries:0:state:data:json:modules:200","$46:props:state:queries:0:state:data:json:modules:201"]},{"title":"Chapter 28: Caching Strategies","order":28,"modules":["$46:props:state:queries:0:state:data:json:modules:202","$46:props:state:queries:0:state:data:json:modules:203","$46:props:state:queries:0:state:data:json:modules:204","$46:props:state:queries:0:state:data:json:modules:205","$46:props:state:queries:0:state:data:json:modules:206","$46:props:state:queries:0:state:data:json:modules:207","$46:props:state:queries:0:state:data:json:modules:208"]},{"title":"Chapter 28: Caching Strategies Lld","order":29,"modules":["$46:props:state:queries:0:state:data:json:modules:209","$46:props:state:queries:0:state:data:json:modules:210"]},{"title":"Chapter 29: Event Driven Design","order":30,"modules":["$46:props:state:queries:0:state:data:json:modules:211","$46:props:state:queries:0:state:data:json:modules:212","$46:props:state:queries:0:state:data:json:modules:213","$46:props:state:queries:0:state:data:json:modules:214","$46:props:state:queries:0:state:data:json:modules:215","$46:props:state:queries:0:state:data:json:modules:216","$46:props:state:queries:0:state:data:json:modules:217","$46:props:state:queries:0:state:data:json:modules:218"]},{"title":"Chapter 30: Resource Management","order":31,"modules":["$46:props:state:queries:0:state:data:json:modules:219","$46:props:state:queries:0:state:data:json:modules:220","$46:props:state:queries:0:state:data:json:modules:221","$46:props:state:queries:0:state:data:json:modules:222","$46:props:state:queries:0:state:data:json:modules:223","$46:props:state:queries:0:state:data:json:modules:224","$46:props:state:queries:0:state:data:json:modules:225"]},{"title":"Chapter 31: Exception Error Handling Design","order":32,"modules":["$46:props:state:queries:0:state:data:json:modules:226","$46:props:state:queries:0:state:data:json:modules:227","$46:props:state:queries:0:state:data:json:modules:228","$46:props:state:queries:0:state:data:json:modules:229","$46:props:state:queries:0:state:data:json:modules:230","$46:props:state:queries:0:state:data:json:modules:231","$46:props:state:queries:0:state:data:json:modules:232","$46:props:state:queries:0:state:data:json:modules:233","$46:props:state:queries:0:state:data:json:modules:234"]},{"title":"Chapter 32: Testing Object Oriented Designs","order":33,"modules":["$46:props:state:queries:0:state:data:json:modules:235","$46:props:state:queries:0:state:data:json:modules:236","$46:props:state:queries:0:state:data:json:modules:237","$46:props:state:queries:0:state:data:json:modules:238","$46:props:state:queries:0:state:data:json:modules:239","$46:props:state:queries:0:state:data:json:modules:240","$46:props:state:queries:0:state:data:json:modules:241","$46:props:state:queries:0:state:data:json:modules:242","$46:props:state:queries:0:state:data:json:modules:243","$46:props:state:queries:0:state:data:json:modules:244"]},{"title":"Chapter 33: Logging Security Configuration","order":34,"modules":["$46:props:state:queries:0:state:data:json:modules:245","$46:props:state:queries:0:state:data:json:modules:246","$46:props:state:queries:0:state:data:json:modules:247","$46:props:state:queries:0:state:data:json:modules:248","$46:props:state:queries:0:state:data:json:modules:249","$46:props:state:queries:0:state:data:json:modules:250"]},{"title":"Chapter 34: Lld Problem Solving Framework","order":35,"modules":["$46:props:state:queries:0:state:data:json:modules:251","$46:props:state:queries:0:state:data:json:modules:252","$46:props:state:queries:0:state:data:json:modules:253","$46:props:state:queries:0:state:data:json:modules:254","$46:props:state:queries:0:state:data:json:modules:255","$46:props:state:queries:0:state:data:json:modules:256","$46:props:state:queries:0:state:data:json:modules:257"]},{"title":"Chapter 35: Case Studies","order":36,"modules":["$46:props:state:queries:0:state:data:json:modules:258","$46:props:state:queries:0:state:data:json:modules:259","$46:props:state:queries:0:state:data:json:modules:260","$46:props:state:queries:0:state:data:json:modules:261","$46:props:state:queries:0:state:data:json:modules:262","$46:props:state:queries:0:state:data:json:modules:263","$46:props:state:queries:0:state:data:json:modules:264","$46:props:state:queries:0:state:data:json:modules:265","$46:props:state:queries:0:state:data:json:modules:266","$46:props:state:queries:0:state:data:json:modules:267","$46:props:state:queries:0:state:data:json:modules:268","$46:props:state:queries:0:state:data:json:modules:269","$46:props:state:queries:0:state:data:json:modules:270","$46:props:state:queries:0:state:data:json:modules:271","$46:props:state:queries:0:state:data:json:modules:272","$46:props:state:queries:0:state:data:json:modules:273","$46:props:state:queries:0:state:data:json:modules:274","$46:props:state:queries:0:state:data:json:modules:275","$46:props:state:queries:0:state:data:json:modules:276","$46:props:state:queries:0:state:data:json:modules:277","$46:props:state:queries:0:state:data:json:modules:278","$46:props:state:queries:0:state:data:json:modules:279"]},{"title":"Chapter 36: Lld Interview Strategies Implementation","order":37,"modules":["$46:props:state:queries:0:state:data:json:modules:280","$46:props:state:queries:0:state:data:json:modules:281","$46:props:state:queries:0:state:data:json:modules:282","$46:props:state:queries:0:state:data:json:modules:283","$46:props:state:queries:0:state:data:json:modules:284","$46:props:state:queries:0:state:data:json:modules:285","$46:props:state:queries:0:state:data:json:modules:286","$46:props:state:queries:0:state:data:json:modules:287","$46:props:state:queries:0:state:data:json:modules:288","$46:props:state:queries:0:state:data:json:modules:289"]}]},"meta":{"values":{"createdAt":["Date"],"updatedAt":["Date"],"modules.0.createdAt":["Date"],"modules.0.updatedAt":["Date"],"modules.1.createdAt":["Date"],"modules.1.updatedAt":["Date"],"modules.2.createdAt":["Date"],"modules.2.updatedAt":["Date"],"modules.3.createdAt":["Date"],"modules.3.updatedAt":["Date"],"modules.4.createdAt":["Date"],"modules.4.updatedAt":["Date"],"modules.5.createdAt":["Date"],"modules.5.updatedAt":["Date"],"modules.6.createdAt":["Date"],"modules.6.updatedAt":["Date"],"modules.7.createdAt":["Date"],"modules.7.updatedAt":["Date"],"modules.8.createdAt":["Date"],"modules.8.updatedAt":["Date"],"modules.9.createdAt":["Date"],"modules.9.updatedAt":["Date"],"modules.10.createdAt":["Date"],"modules.10.updatedAt":["Date"],"modules.11.createdAt":["Date"],"modules.11.updatedAt":["Date"],"modules.12.createdAt":["Date"],"modules.12.updatedAt":["Date"],"modules.13.createdAt":["Date"],"modules.13.updatedAt":["Date"],"modules.14.createdAt":["Date"],"modules.14.updatedAt":["Date"],"modules.15.createdAt":["Date"],"modules.15.updatedAt":["Date"],"modules.16.createdAt":["Date"],"modules.16.updatedAt":["Date"],"modules.17.createdAt":["Date"],"modules.17.updatedAt":["Date"],"modules.18.createdAt":["Date"],"modules.18.updatedAt":["Date"],"modules.19.createdAt":["Date"],"modules.19.updatedAt":["Date"],"modules.20.createdAt":["Date"],"modules.20.updatedAt":["Date"],"modules.21.createdAt":["Date"],"modules.21.updatedAt":["Date"],"modules.22.createdAt":["Date"],"modules.22.updatedAt":["Date"],"modules.23.createdAt":["Date"],"modules.23.updatedAt":["Date"],"modules.24.createdAt":["Date"],"modules.24.updatedAt":["Date"],"modules.25.createdAt":["Date"],"modules.25.updatedAt":["Date"],"modules.26.createdAt":["Date"],"modules.26.updatedAt":["Date"],"modules.27.createdAt":["Date"],"modules.27.updatedAt":["Date"],"modules.28.createdAt":["Date"],"modules.28.updatedAt":["Date"],"modules.29.createdAt":["Date"],"modules.29.updatedAt":["Date"],"modules.30.createdAt":["Date"],"modules.30.updatedAt":["Date"],"modules.31.createdAt":["Date"],"modules.31.updatedAt":["Date"],"modules.32.createdAt":["Date"],"modules.32.updatedAt":["Date"],"modules.33.createdAt":["Date"],"modules.33.updatedAt":["Date"],"modules.34.createdAt":["Date"],"modules.34.updatedAt":["Date"],"modules.35.createdAt":["Date"],"modules.35.updatedAt":["Date"],"modules.36.createdAt":["Date"],"modules.36.updatedAt":["Date"],"modules.37.createdAt":["Date"],"modules.37.updatedAt":["Date"],"modules.38.createdAt":["Date"],"modules.38.updatedAt":["Date"],"modules.39.createdAt":["Date"],"modules.39.updatedAt":["Date"],"modules.40.createdAt":["Date"],"modules.40.updatedAt":["Date"],"modules.41.createdAt":["Date"],"modules.41.updatedAt":["Date"],"modules.42.createdAt":["Date"],"modules.42.updatedAt":["Date"],"modules.43.createdAt":["Date"],"modules.43.updatedAt":["Date"],"modules.44.createdAt":["Date"],"modules.44.updatedAt":["Date"],"modules.45.createdAt":["Date"],"modules.45.updatedAt":["Date"],"modules.46.createdAt":["Date"],"modules.46.updatedAt":["Date"],"modules.47.createdAt":["Date"],"modules.47.updatedAt":["Date"],"modules.48.createdAt":["Date"],"modules.48.updatedAt":["Date"],"modules.49.createdAt":["Date"],"modules.49.updatedAt":["Date"],"modules.50.createdAt":["Date"],"modules.50.updatedAt":["Date"],"modules.51.createdAt":["Date"],"modules.51.updatedAt":["Date"],"modules.52.createdAt":["Date"],"modules.52.updatedAt":["Date"],"modules.53.createdAt":["Date"],"modules.53.updatedAt":["Date"],"modules.54.createdAt":["Date"],"modules.54.updatedAt":["Date"],"modules.55.createdAt":["Date"],"modules.55.updatedAt":["Date"],"modules.56.createdAt":["Date"],"modules.56.updatedAt":["Date"],"modules.57.createdAt":["Date"],"modules.57.updatedAt":["Date"],"modules.58.createdAt":["Date"],"modules.58.updatedAt":["Date"],"modules.59.createdAt":["Date"],"modules.59.updatedAt":["Date"],"modules.60.createdAt":["Date"],"modules.60.updatedAt":["Date"],"modules.61.createdAt":["Date"],"modules.61.updatedAt":["Date"],"modules.62.createdAt":["Date"],"modules.62.updatedAt":["Date"],"modules.63.createdAt":["Date"],"modules.63.updatedAt":["Date"],"modules.64.createdAt":["Date"],"modules.64.updatedAt":["Date"],"modules.65.createdAt":["Date"],"modules.65.updatedAt":["Date"],"modules.66.createdAt":["Date"],"modules.66.updatedAt":["Date"],"modules.67.createdAt":["Date"],"modules.67.updatedAt":["Date"],"modules.68.createdAt":["Date"],"modules.68.updatedAt":["Date"],"modules.69.createdAt":["Date"],"modules.69.updatedAt":["Date"],"modules.70.createdAt":["Date"],"modules.70.updatedAt":["Date"],"modules.71.createdAt":["Date"],"modules.71.updatedAt":["Date"],"modules.72.createdAt":["Date"],"modules.72.updatedAt":["Date"],"modules.73.createdAt":["Date"],"modules.73.updatedAt":["Date"],"modules.74.createdAt":["Date"],"modules.74.updatedAt":["Date"],"modules.75.createdAt":["Date"],"modules.75.updatedAt":["Date"],"modules.76.createdAt":["Date"],"modules.76.updatedAt":["Date"],"modules.77.createdAt":["Date"],"modules.77.updatedAt":["Date"],"modules.78.createdAt":["Date"],"modules.78.updatedAt":["Date"],"modules.79.createdAt":["Date"],"modules.79.updatedAt":["Date"],"modules.80.createdAt":["Date"],"modules.80.updatedAt":["Date"],"modules.81.createdAt":["Date"],"modules.81.updatedAt":["Date"],"modules.82.createdAt":["Date"],"modules.82.updatedAt":["Date"],"modules.83.createdAt":["Date"],"modules.83.updatedAt":["Date"],"modules.84.createdAt":["Date"],"modules.84.updatedAt":["Date"],"modules.85.createdAt":["Date"],"modules.85.updatedAt":["Date"],"modules.86.createdAt":["Date"],"modules.86.updatedAt":["Date"],"modules.87.createdAt":["Date"],"modules.87.updatedAt":["Date"],"modules.88.createdAt":["Date"],"modules.88.updatedAt":["Date"],"modules.89.createdAt":["Date"],"modules.89.updatedAt":["Date"],"modules.90.createdAt":["Date"],"modules.90.updatedAt":["Date"],"modules.91.createdAt":["Date"],"modules.91.updatedAt":["Date"],"modules.92.createdAt":["Date"],"modules.92.updatedAt":["Date"],"modules.93.createdAt":["Date"],"modules.93.updatedAt":["Date"],"modules.94.createdAt":["Date"],"modules.94.updatedAt":["Date"],"modules.95.createdAt":["Date"],"modules.95.updatedAt":["Date"],"modules.96.createdAt":["Date"],"modules.96.updatedAt":["Date"],"modules.97.createdAt":["Date"],"modules.97.updatedAt":["Date"],"modules.98.createdAt":["Date"],"modules.98.updatedAt":["Date"],"modules.99.createdAt":["Date"],"modules.99.updatedAt":["Date"],"modules.100.createdAt":["Date"],"modules.100.updatedAt":["Date"],"modules.101.createdAt":["Date"],"modules.101.updatedAt":["Date"],"modules.102.createdAt":["Date"],"modules.102.updatedAt":["Date"],"modules.103.createdAt":["Date"],"modules.103.updatedAt":["Date"],"modules.104.createdAt":["Date"],"modules.104.updatedAt":["Date"],"modules.105.createdAt":["Date"],"modules.105.updatedAt":["Date"],"modules.106.createdAt":["Date"],"modules.106.updatedAt":["Date"],"modules.107.createdAt":["Date"],"modules.107.updatedAt":["Date"],"modules.108.createdAt":["Date"],"modules.108.updatedAt":["Date"],"modules.109.createdAt":["Date"],"modules.109.updatedAt":["Date"],"modules.110.createdAt":["Date"],"modules.110.updatedAt":["Date"],"modules.111.createdAt":["Date"],"modules.111.updatedAt":["Date"],"modules.112.createdAt":["Date"],"modules.112.updatedAt":["Date"],"modules.113.createdAt":["Date"],"modules.113.updatedAt":["Date"],"modules.114.createdAt":["Date"],"modules.114.updatedAt":["Date"],"modules.115.createdAt":["Date"],"modules.115.updatedAt":["Date"],"modules.116.createdAt":["Date"],"modules.116.updatedAt":["Date"],"modules.117.createdAt":["Date"],"modules.117.updatedAt":["Date"],"modules.118.createdAt":["Date"],"modules.118.updatedAt":["Date"],"modules.119.createdAt":["Date"],"modules.119.updatedAt":["Date"],"modules.120.createdAt":["Date"],"modules.120.updatedAt":["Date"],"modules.121.createdAt":["Date"],"modules.121.updatedAt":["Date"],"modules.122.createdAt":["Date"],"modules.122.updatedAt":["Date"],"modules.123.createdAt":["Date"],"modules.123.updatedAt":["Date"],"modules.124.createdAt":["Date"],"modules.124.updatedAt":["Date"],"modules.125.createdAt":["Date"],"modules.125.updatedAt":["Date"],"modules.126.createdAt":["Date"],"modules.126.updatedAt":["Date"],"modules.127.createdAt":["Date"],"modules.127.updatedAt":["Date"],"modules.128.createdAt":["Date"],"modules.128.updatedAt":["Date"],"modules.129.createdAt":["Date"],"modules.129.updatedAt":["Date"],"modules.130.createdAt":["Date"],"modules.130.updatedAt":["Date"],"modules.131.createdAt":["Date"],"modules.131.updatedAt":["Date"],"modules.132.createdAt":["Date"],"modules.132.updatedAt":["Date"],"modules.133.createdAt":["Date"],"modules.133.updatedAt":["Date"],"modules.134.createdAt":["Date"],"modules.134.updatedAt":["Date"],"modules.135.createdAt":["Date"],"modules.135.updatedAt":["Date"],"modules.136.createdAt":["Date"],"modules.136.updatedAt":["Date"],"modules.137.createdAt":["Date"],"modules.137.updatedAt":["Date"],"modules.138.createdAt":["Date"],"modules.138.updatedAt":["Date"],"modules.139.createdAt":["Date"],"modules.139.updatedAt":["Date"],"modules.140.createdAt":["Date"],"modules.140.updatedAt":["Date"],"modules.141.createdAt":["Date"],"modules.141.updatedAt":["Date"],"modules.142.createdAt":["Date"],"modules.142.updatedAt":["Date"],"modules.143.createdAt":["Date"],"modules.143.updatedAt":["Date"],"modules.144.createdAt":["Date"],"modules.144.updatedAt":["Date"],"modules.145.createdAt":["Date"],"modules.145.updatedAt":["Date"],"modules.146.createdAt":["Date"],"modules.146.updatedAt":["Date"],"modules.147.createdAt":["Date"],"modules.147.updatedAt":["Date"],"modules.148.createdAt":["Date"],"modules.148.updatedAt":["Date"],"modules.149.createdAt":["Date"],"modules.149.updatedAt":["Date"],"modules.150.createdAt":["Date"],"modules.150.updatedAt":["Date"],"modules.151.createdAt":["Date"],"modules.151.updatedAt":["Date"],"modules.152.createdAt":["Date"],"modules.152.updatedAt":["Date"],"modules.153.createdAt":["Date"],"modules.153.updatedAt":["Date"],"modules.154.createdAt":["Date"],"modules.154.updatedAt":["Date"],"modules.155.createdAt":["Date"],"modules.155.updatedAt":["Date"],"modules.156.createdAt":["Date"],"modules.156.updatedAt":["Date"],"modules.157.createdAt":["Date"],"modules.157.updatedAt":["Date"],"modules.158.createdAt":["Date"],"modules.158.updatedAt":["Date"],"modules.159.createdAt":["Date"],"modules.159.updatedAt":["Date"],"modules.160.createdAt":["Date"],"modules.160.updatedAt":["Date"],"modules.161.createdAt":["Date"],"modules.161.updatedAt":["Date"],"modules.162.createdAt":["Date"],"modules.162.updatedAt":["Date"],"modules.163.createdAt":["Date"],"modules.163.updatedAt":["Date"],"modules.164.createdAt":["Date"],"modules.164.updatedAt":["Date"],"modules.165.createdAt":["Date"],"modules.165.updatedAt":["Date"],"modules.166.createdAt":["Date"],"modules.166.updatedAt":["Date"],"modules.167.createdAt":["Date"],"modules.167.updatedAt":["Date"],"modules.168.createdAt":["Date"],"modules.168.updatedAt":["Date"],"modules.169.createdAt":["Date"],"modules.169.updatedAt":["Date"],"modules.170.createdAt":["Date"],"modules.170.updatedAt":["Date"],"modules.171.createdAt":["Date"],"modules.171.updatedAt":["Date"],"modules.172.createdAt":["Date"],"modules.172.updatedAt":["Date"],"modules.173.createdAt":["Date"],"modules.173.updatedAt":["Date"],"modules.174.createdAt":["Date"],"modules.174.updatedAt":["Date"],"modules.175.createdAt":["Date"],"modules.175.updatedAt":["Date"],"modules.176.createdAt":["Date"],"modules.176.updatedAt":["Date"],"modules.177.createdAt":["Date"],"modules.177.updatedAt":["Date"],"modules.178.createdAt":["Date"],"modules.178.updatedAt":["Date"],"modules.179.createdAt":["Date"],"modules.179.updatedAt":["Date"],"modules.180.createdAt":["Date"],"modules.180.updatedAt":["Date"],"modules.181.createdAt":["Date"],"modules.181.updatedAt":["Date"],"modules.182.createdAt":["Date"],"modules.182.updatedAt":["Date"],"modules.183.createdAt":["Date"],"modules.183.updatedAt":["Date"],"modules.184.createdAt":["Date"],"modules.184.updatedAt":["Date"],"modules.185.createdAt":["Date"],"modules.185.updatedAt":["Date"],"modules.186.createdAt":["Date"],"modules.186.updatedAt":["Date"],"modules.187.createdAt":["Date"],"modules.187.updatedAt":["Date"],"modules.188.createdAt":["Date"],"modules.188.updatedAt":["Date"],"modules.189.createdAt":["Date"],"modules.189.updatedAt":["Date"],"modules.190.createdAt":["Date"],"modules.190.updatedAt":["Date"],"modules.191.createdAt":["Date"],"modules.191.updatedAt":["Date"],"modules.192.createdAt":["Date"],"modules.192.updatedAt":["Date"],"modules.193.createdAt":["Date"],"modules.193.updatedAt":["Date"],"modules.194.createdAt":["Date"],"modules.194.updatedAt":["Date"],"modules.195.createdAt":["Date"],"modules.195.updatedAt":["Date"],"modules.196.createdAt":["Date"],"modules.196.updatedAt":["Date"],"modules.197.createdAt":["Date"],"modules.197.updatedAt":["Date"],"modules.198.createdAt":["Date"],"modules.198.updatedAt":["Date"],"modules.199.createdAt":["Date"],"modules.199.updatedAt":["Date"],"modules.200.createdAt":["Date"],"modules.200.updatedAt":["Date"],"modules.201.createdAt":["Date"],"modules.201.updatedAt":["Date"],"modules.202.createdAt":["Date"],"modules.202.updatedAt":["Date"],"modules.203.createdAt":["Date"],"modules.203.updatedAt":["Date"],"modules.204.createdAt":["Date"],"modules.204.updatedAt":["Date"],"modules.205.createdAt":["Date"],"modules.205.updatedAt":["Date"],"modules.206.createdAt":["Date"],"modules.206.updatedAt":["Date"],"modules.207.createdAt":["Date"],"modules.207.updatedAt":["Date"],"modules.208.createdAt":["Date"],"modules.208.updatedAt":["Date"],"modules.209.createdAt":["Date"],"modules.209.updatedAt":["Date"],"modules.210.createdAt":["Date"],"modules.210.updatedAt":["Date"],"modules.211.createdAt":["Date"],"modules.211.updatedAt":["Date"],"modules.212.createdAt":["Date"],"modules.212.updatedAt":["Date"],"modules.213.createdAt":["Date"],"modules.213.updatedAt":["Date"],"modules.214.createdAt":["Date"],"modules.214.updatedAt":["Date"],"modules.215.createdAt":["Date"],"modules.215.updatedAt":["Date"],"modules.216.createdAt":["Date"],"modules.216.updatedAt":["Date"],"modules.217.createdAt":["Date"],"modules.217.updatedAt":["Date"],"modules.218.createdAt":["Date"],"modules.218.updatedAt":["Date"],"modules.219.createdAt":["Date"],"modules.219.updatedAt":["Date"],"modules.220.createdAt":["Date"],"modules.220.updatedAt":["Date"],"modules.221.createdAt":["Date"],"modules.221.updatedAt":["Date"],"modules.222.createdAt":["Date"],"modules.222.updatedAt":["Date"],"modules.223.createdAt":["Date"],"modules.223.updatedAt":["Date"],"modules.224.createdAt":["Date"],"modules.224.updatedAt":["Date"],"modules.225.createdAt":["Date"],"modules.225.updatedAt":["Date"],"modules.226.createdAt":["Date"],"modules.226.updatedAt":["Date"],"modules.227.createdAt":["Date"],"modules.227.updatedAt":["Date"],"modules.228.createdAt":["Date"],"modules.228.updatedAt":["Date"],"modules.229.createdAt":["Date"],"modules.229.updatedAt":["Date"],"modules.230.createdAt":["Date"],"modules.230.updatedAt":["Date"],"modules.231.createdAt":["Date"],"modules.231.updatedAt":["Date"],"modules.232.createdAt":["Date"],"modules.232.updatedAt":["Date"],"modules.233.createdAt":["Date"],"modules.233.updatedAt":["Date"],"modules.234.createdAt":["Date"],"modules.234.updatedAt":["Date"],"modules.235.createdAt":["Date"],"modules.235.updatedAt":["Date"],"modules.236.createdAt":["Date"],"modules.236.updatedAt":["Date"],"modules.237.createdAt":["Date"],"modules.237.updatedAt":["Date"],"modules.238.createdAt":["Date"],"modules.238.updatedAt":["Date"],"modules.239.createdAt":["Date"],"modules.239.updatedAt":["Date"],"modules.240.createdAt":["Date"],"modules.240.updatedAt":["Date"],"modules.241.createdAt":["Date"],"modules.241.updatedAt":["Date"],"modules.242.createdAt":["Date"],"modules.242.updatedAt":["Date"],"modules.243.createdAt":["Date"],"modules.243.updatedAt":["Date"],"modules.244.createdAt":["Date"],"modules.244.updatedAt":["Date"],"modules.245.createdAt":["Date"],"modules.245.updatedAt":["Date"],"modules.246.createdAt":["Date"],"modules.246.updatedAt":["Date"],"modules.247.createdAt":["Date"],"modules.247.updatedAt":["Date"],"modules.248.createdAt":["Date"],"modules.248.updatedAt":["Date"],"modules.249.createdAt":["Date"],"modules.249.updatedAt":["Date"],"modules.250.createdAt":["Date"],"modules.250.updatedAt":["Date"],"modules.251.createdAt":["Date"],"modules.251.updatedAt":["Date"],"modules.252.createdAt":["Date"],"modules.252.updatedAt":["Date"],"modules.253.createdAt":["Date"],"modules.253.updatedAt":["Date"],"modules.254.createdAt":["Date"],"modules.254.updatedAt":["Date"],"modules.255.createdAt":["Date"],"modules.255.updatedAt":["Date"],"modules.256.createdAt":["Date"],"modules.256.updatedAt":["Date"],"modules.257.createdAt":["Date"],"modules.257.updatedAt":["Date"],"modules.258.createdAt":["Date"],"modules.258.updatedAt":["Date"],"modules.259.createdAt":["Date"],"modules.259.updatedAt":["Date"],"modules.260.createdAt":["Date"],"modules.260.updatedAt":["Date"],"modules.261.createdAt":["Date"],"modules.261.updatedAt":["Date"],"modules.262.createdAt":["Date"],"modules.262.updatedAt":["Date"],"modules.263.createdAt":["Date"],"modules.263.updatedAt":["Date"],"modules.264.createdAt":["Date"],"modules.264.updatedAt":["Date"],"modules.265.createdAt":["Date"],"modules.265.updatedAt":["Date"],"modules.266.createdAt":["Date"],"modules.266.updatedAt":["Date"],"modules.267.createdAt":["Date"],"modules.267.updatedAt":["Date"],"modules.268.createdAt":["Date"],"modules.268.updatedAt":["Date"],"modules.269.createdAt":["Date"],"modules.269.updatedAt":["Date"],"modules.270.createdAt":["Date"],"modules.270.updatedAt":["Date"],"modules.271.createdAt":["Date"],"modules.271.updatedAt":["Date"],"modules.272.createdAt":["Date"],"modules.272.updatedAt":["Date"],"modules.273.createdAt":["Date"],"modules.273.updatedAt":["Date"],"modules.274.createdAt":["Date"],"modules.274.updatedAt":["Date"],"modules.275.createdAt":["Date"],"modules.275.updatedAt":["Date"],"modules.276.createdAt":["Date"],"modules.276.updatedAt":["Date"],"modules.277.createdAt":["Date"],"modules.277.updatedAt":["Date"],"modules.278.createdAt":["Date"],"modules.278.updatedAt":["Date"],"modules.279.createdAt":["Date"],"modules.279.updatedAt":["Date"],"modules.280.createdAt":["Date"],"modules.280.updatedAt":["Date"],"modules.281.createdAt":["Date"],"modules.281.updatedAt":["Date"],"modules.282.createdAt":["Date"],"modules.282.updatedAt":["Date"],"modules.283.createdAt":["Date"],"modules.283.updatedAt":["Date"],"modules.284.createdAt":["Date"],"modules.284.updatedAt":["Date"],"modules.285.createdAt":["Date"],"modules.285.updatedAt":["Date"],"modules.286.createdAt":["Date"],"modules.286.updatedAt":["Date"],"modules.287.createdAt":["Date"],"modules.287.updatedAt":["Date"],"modules.288.createdAt":["Date"],"modules.288.updatedAt":["Date"],"modules.289.createdAt":["Date"],"modules.289.updatedAt":["Date"],"sections.0.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.0.createdAt","sections.0.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.0.updatedAt","sections.0.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.1.createdAt","sections.0.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.1.updatedAt","sections.0.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.2.createdAt","sections.0.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.2.updatedAt","sections.0.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.3.createdAt","sections.0.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.3.updatedAt","sections.0.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.4.createdAt","sections.0.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.4.updatedAt","sections.0.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.5.createdAt","sections.0.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.5.updatedAt","sections.1.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.6.createdAt","sections.1.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.6.updatedAt","sections.1.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.7.createdAt","sections.1.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.7.updatedAt","sections.1.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.8.createdAt","sections.1.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.8.updatedAt","sections.1.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.9.createdAt","sections.1.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.9.updatedAt","sections.1.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.10.createdAt","sections.1.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.10.updatedAt","sections.1.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.11.createdAt","sections.1.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.11.updatedAt","sections.2.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.12.createdAt","sections.2.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.12.updatedAt","sections.2.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.13.createdAt","sections.2.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.13.updatedAt","sections.2.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.14.createdAt","sections.2.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.14.updatedAt","sections.2.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.15.createdAt","sections.2.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.15.updatedAt","sections.2.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.16.createdAt","sections.2.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.16.updatedAt","sections.2.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.17.createdAt","sections.2.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.17.updatedAt","sections.2.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.18.createdAt","sections.2.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.18.updatedAt","sections.2.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.19.createdAt","sections.2.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.19.updatedAt","sections.3.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.20.createdAt","sections.3.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.20.updatedAt","sections.3.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.21.createdAt","sections.3.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.21.updatedAt","sections.3.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.22.createdAt","sections.3.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.22.updatedAt","sections.3.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.23.createdAt","sections.3.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.23.updatedAt","sections.3.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.24.createdAt","sections.3.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.24.updatedAt","sections.3.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.25.createdAt","sections.3.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.25.updatedAt","sections.3.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.26.createdAt","sections.3.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.26.updatedAt","sections.4.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.27.createdAt","sections.4.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.27.updatedAt","sections.4.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.28.createdAt","sections.4.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.28.updatedAt","sections.4.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.29.createdAt","sections.4.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.29.updatedAt","sections.4.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.30.createdAt","sections.4.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.30.updatedAt","sections.4.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.31.createdAt","sections.4.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.31.updatedAt","sections.4.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.32.createdAt","sections.4.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.32.updatedAt","sections.5.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.33.createdAt","sections.5.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.33.updatedAt","sections.5.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.34.createdAt","sections.5.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.34.updatedAt","sections.5.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.35.createdAt","sections.5.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.35.updatedAt","sections.5.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.36.createdAt","sections.5.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.36.updatedAt","sections.5.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.37.createdAt","sections.5.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.37.updatedAt","sections.5.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.38.createdAt","sections.5.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.38.updatedAt","sections.5.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.39.createdAt","sections.5.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.39.updatedAt","sections.6.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.40.createdAt","sections.6.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.40.updatedAt","sections.6.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.41.createdAt","sections.6.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.41.updatedAt","sections.6.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.42.createdAt","sections.6.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.42.updatedAt","sections.6.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.43.createdAt","sections.6.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.43.updatedAt","sections.6.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.44.createdAt","sections.6.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.44.updatedAt","sections.6.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.45.createdAt","sections.6.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.45.updatedAt","sections.6.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.46.createdAt","sections.6.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.46.updatedAt","sections.7.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.47.createdAt","sections.7.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.47.updatedAt","sections.7.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.48.createdAt","sections.7.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.48.updatedAt","sections.7.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.49.createdAt","sections.7.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.49.updatedAt","sections.7.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.50.createdAt","sections.7.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.50.updatedAt","sections.7.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.51.createdAt","sections.7.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.51.updatedAt","sections.7.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.52.createdAt","sections.7.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.52.updatedAt","sections.8.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.53.createdAt","sections.8.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.53.updatedAt","sections.8.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.54.createdAt","sections.8.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.54.updatedAt","sections.8.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.55.createdAt","sections.8.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.55.updatedAt","sections.8.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.56.createdAt","sections.8.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.56.updatedAt","sections.8.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.57.createdAt","sections.8.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.57.updatedAt","sections.8.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.58.createdAt","sections.8.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.58.updatedAt","sections.8.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.59.createdAt","sections.8.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.59.updatedAt","sections.8.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.60.createdAt","sections.8.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.60.updatedAt","sections.8.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.61.createdAt","sections.8.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.61.updatedAt","sections.9.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.62.createdAt","sections.9.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.62.updatedAt","sections.9.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.63.createdAt","sections.9.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.63.updatedAt","sections.9.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.64.createdAt","sections.9.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.64.updatedAt","sections.9.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.65.createdAt","sections.9.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.65.updatedAt","sections.9.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.66.createdAt","sections.9.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.66.updatedAt","sections.9.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.67.createdAt","sections.9.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.67.updatedAt","sections.10.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.68.createdAt","sections.10.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.68.updatedAt","sections.10.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.69.createdAt","sections.10.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.69.updatedAt","sections.10.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.70.createdAt","sections.10.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.70.updatedAt","sections.10.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.71.createdAt","sections.10.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.71.updatedAt","sections.10.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.72.createdAt","sections.10.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.72.updatedAt","sections.10.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.73.createdAt","sections.10.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.73.updatedAt","sections.11.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.74.createdAt","sections.11.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.74.updatedAt","sections.11.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.75.createdAt","sections.11.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.75.updatedAt","sections.11.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.76.createdAt","sections.11.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.76.updatedAt","sections.11.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.77.createdAt","sections.11.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.77.updatedAt","sections.11.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.78.createdAt","sections.11.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.78.updatedAt","sections.11.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.79.createdAt","sections.11.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.79.updatedAt","sections.12.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.80.createdAt","sections.12.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.80.updatedAt","sections.12.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.81.createdAt","sections.12.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.81.updatedAt","sections.12.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.82.createdAt","sections.12.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.82.updatedAt","sections.12.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.83.createdAt","sections.12.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.83.updatedAt","sections.12.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.84.createdAt","sections.12.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.84.updatedAt","sections.12.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.85.createdAt","sections.12.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.85.updatedAt","sections.13.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.86.createdAt","sections.13.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.86.updatedAt","sections.13.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.87.createdAt","sections.13.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.87.updatedAt","sections.13.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.88.createdAt","sections.13.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.88.updatedAt","sections.13.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.89.createdAt","sections.13.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.89.updatedAt","sections.13.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.90.createdAt","sections.13.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.90.updatedAt","sections.13.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.91.createdAt","sections.13.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.91.updatedAt","sections.14.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.92.createdAt","sections.14.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.92.updatedAt","sections.14.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.93.createdAt","sections.14.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.93.updatedAt","sections.14.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.94.createdAt","sections.14.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.94.updatedAt","sections.14.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.95.createdAt","sections.14.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.95.updatedAt","sections.14.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.96.createdAt","sections.14.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.96.updatedAt","sections.14.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.97.createdAt","sections.14.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.97.updatedAt","sections.14.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.98.createdAt","sections.14.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.98.updatedAt","sections.14.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.99.createdAt","sections.14.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.99.updatedAt","sections.15.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.100.createdAt","sections.15.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.100.updatedAt","sections.15.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.101.createdAt","sections.15.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.101.updatedAt","sections.15.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.102.createdAt","sections.15.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.102.updatedAt","sections.15.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.103.createdAt","sections.15.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.103.updatedAt","sections.15.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.104.createdAt","sections.15.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.104.updatedAt","sections.15.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.105.createdAt","sections.15.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.105.updatedAt","sections.16.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.106.createdAt","sections.16.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.106.updatedAt","sections.16.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.107.createdAt","sections.16.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.107.updatedAt","sections.16.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.108.createdAt","sections.16.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.108.updatedAt","sections.16.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.109.createdAt","sections.16.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.109.updatedAt","sections.16.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.110.createdAt","sections.16.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.110.updatedAt","sections.16.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.111.createdAt","sections.16.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.111.updatedAt","sections.16.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.112.createdAt","sections.16.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.112.updatedAt","sections.16.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.113.createdAt","sections.16.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.113.updatedAt","sections.16.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.114.createdAt","sections.16.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.114.updatedAt","sections.17.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.115.createdAt","sections.17.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.115.updatedAt","sections.17.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.116.createdAt","sections.17.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.116.updatedAt","sections.17.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.117.createdAt","sections.17.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.117.updatedAt","sections.17.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.118.createdAt","sections.17.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.118.updatedAt","sections.17.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.119.createdAt","sections.17.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.119.updatedAt","sections.17.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.120.createdAt","sections.17.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.120.updatedAt","sections.17.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.121.createdAt","sections.17.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.121.updatedAt","sections.17.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.122.createdAt","sections.17.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.122.updatedAt","sections.18.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.123.createdAt","sections.18.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.123.updatedAt","sections.18.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.124.createdAt","sections.18.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.124.updatedAt","sections.18.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.125.createdAt","sections.18.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.125.updatedAt","sections.18.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.126.createdAt","sections.18.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.126.updatedAt","sections.18.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.127.createdAt","sections.18.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.127.updatedAt","sections.18.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.128.createdAt","sections.18.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.128.updatedAt","sections.18.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.129.createdAt","sections.18.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.129.updatedAt","sections.18.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.130.createdAt","sections.18.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.130.updatedAt","sections.18.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.131.createdAt","sections.18.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.131.updatedAt","sections.19.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.132.createdAt","sections.19.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.132.updatedAt","sections.19.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.133.createdAt","sections.19.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.133.updatedAt","sections.19.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.134.createdAt","sections.19.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.134.updatedAt","sections.19.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.135.createdAt","sections.19.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.135.updatedAt","sections.19.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.136.createdAt","sections.19.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.136.updatedAt","sections.19.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.137.createdAt","sections.19.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.137.updatedAt","sections.19.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.138.createdAt","sections.19.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.138.updatedAt","sections.19.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.139.createdAt","sections.19.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.139.updatedAt","sections.19.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.140.createdAt","sections.19.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.140.updatedAt","sections.19.modules.9.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.141.createdAt","sections.19.modules.9.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.141.updatedAt","sections.20.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.142.createdAt","sections.20.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.142.updatedAt","sections.20.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.143.createdAt","sections.20.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.143.updatedAt","sections.20.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.144.createdAt","sections.20.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.144.updatedAt","sections.20.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.145.createdAt","sections.20.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.145.updatedAt","sections.20.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.146.createdAt","sections.20.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.146.updatedAt","sections.20.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.147.createdAt","sections.20.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.147.updatedAt","sections.20.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.148.createdAt","sections.20.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.148.updatedAt","sections.20.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.149.createdAt","sections.20.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.149.updatedAt","sections.21.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.150.createdAt","sections.21.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.150.updatedAt","sections.21.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.151.createdAt","sections.21.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.151.updatedAt","sections.21.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.152.createdAt","sections.21.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.152.updatedAt","sections.21.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.153.createdAt","sections.21.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.153.updatedAt","sections.21.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.154.createdAt","sections.21.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.154.updatedAt","sections.21.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.155.createdAt","sections.21.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.155.updatedAt","sections.21.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.156.createdAt","sections.21.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.156.updatedAt","sections.21.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.157.createdAt","sections.21.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.157.updatedAt","sections.22.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.158.createdAt","sections.22.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.158.updatedAt","sections.22.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.159.createdAt","sections.22.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.159.updatedAt","sections.22.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.160.createdAt","sections.22.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.160.updatedAt","sections.22.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.161.createdAt","sections.22.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.161.updatedAt","sections.22.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.162.createdAt","sections.22.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.162.updatedAt","sections.22.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.163.createdAt","sections.22.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.163.updatedAt","sections.22.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.164.createdAt","sections.22.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.164.updatedAt","sections.22.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.165.createdAt","sections.22.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.165.updatedAt","sections.22.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.166.createdAt","sections.22.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.166.updatedAt","sections.23.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.167.createdAt","sections.23.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.167.updatedAt","sections.23.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.168.createdAt","sections.23.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.168.updatedAt","sections.23.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.169.createdAt","sections.23.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.169.updatedAt","sections.23.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.170.createdAt","sections.23.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.170.updatedAt","sections.23.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.171.createdAt","sections.23.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.171.updatedAt","sections.23.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.172.createdAt","sections.23.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.172.updatedAt","sections.23.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.173.createdAt","sections.23.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.173.updatedAt","sections.23.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.174.createdAt","sections.23.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.174.updatedAt","sections.23.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.175.createdAt","sections.23.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.175.updatedAt","sections.23.modules.9.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.176.createdAt","sections.23.modules.9.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.176.updatedAt","sections.23.modules.10.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.177.createdAt","sections.23.modules.10.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.177.updatedAt","sections.23.modules.11.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.178.createdAt","sections.23.modules.11.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.178.updatedAt","sections.24.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.179.createdAt","sections.24.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.179.updatedAt","sections.24.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.180.createdAt","sections.24.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.180.updatedAt","sections.24.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.181.createdAt","sections.24.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.181.updatedAt","sections.24.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.182.createdAt","sections.24.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.182.updatedAt","sections.24.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.183.createdAt","sections.24.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.183.updatedAt","sections.24.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.184.createdAt","sections.24.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.184.updatedAt","sections.24.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.185.createdAt","sections.24.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.185.updatedAt","sections.25.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.186.createdAt","sections.25.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.186.updatedAt","sections.25.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.187.createdAt","sections.25.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.187.updatedAt","sections.25.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.188.createdAt","sections.25.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.188.updatedAt","sections.25.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.189.createdAt","sections.25.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.189.updatedAt","sections.25.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.190.createdAt","sections.25.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.190.updatedAt","sections.25.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.191.createdAt","sections.25.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.191.updatedAt","sections.25.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.192.createdAt","sections.25.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.192.updatedAt","sections.26.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.193.createdAt","sections.26.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.193.updatedAt","sections.26.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.194.createdAt","sections.26.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.194.updatedAt","sections.26.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.195.createdAt","sections.26.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.195.updatedAt","sections.26.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.196.createdAt","sections.26.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.196.updatedAt","sections.26.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.197.createdAt","sections.26.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.197.updatedAt","sections.26.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.198.createdAt","sections.26.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.198.updatedAt","sections.26.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.199.createdAt","sections.26.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.199.updatedAt","sections.26.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.200.createdAt","sections.26.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.200.updatedAt","sections.26.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.201.createdAt","sections.26.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.201.updatedAt","sections.27.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.202.createdAt","sections.27.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.202.updatedAt","sections.27.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.203.createdAt","sections.27.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.203.updatedAt","sections.27.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.204.createdAt","sections.27.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.204.updatedAt","sections.27.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.205.createdAt","sections.27.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.205.updatedAt","sections.27.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.206.createdAt","sections.27.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.206.updatedAt","sections.27.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.207.createdAt","sections.27.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.207.updatedAt","sections.27.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.208.createdAt","sections.27.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.208.updatedAt","sections.28.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.209.createdAt","sections.28.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.209.updatedAt","sections.28.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.210.createdAt","sections.28.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.210.updatedAt","sections.29.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.211.createdAt","sections.29.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.211.updatedAt","sections.29.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.212.createdAt","sections.29.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.212.updatedAt","sections.29.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.213.createdAt","sections.29.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.213.updatedAt","sections.29.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.214.createdAt","sections.29.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.214.updatedAt","sections.29.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.215.createdAt","sections.29.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.215.updatedAt","sections.29.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.216.createdAt","sections.29.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.216.updatedAt","sections.29.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.217.createdAt","sections.29.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.217.updatedAt","sections.29.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.218.createdAt","sections.29.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.218.updatedAt","sections.30.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.219.createdAt","sections.30.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.219.updatedAt","sections.30.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.220.createdAt","sections.30.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.220.updatedAt","sections.30.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.221.createdAt","sections.30.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.221.updatedAt","sections.30.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.222.createdAt","sections.30.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.222.updatedAt","sections.30.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.223.createdAt","sections.30.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.223.updatedAt","sections.30.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.224.createdAt","sections.30.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.224.updatedAt","sections.30.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.225.createdAt","sections.30.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.225.updatedAt","sections.31.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.226.createdAt","sections.31.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.226.updatedAt","sections.31.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.227.createdAt","sections.31.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.227.updatedAt","sections.31.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.228.createdAt","sections.31.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.228.updatedAt","sections.31.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.229.createdAt","sections.31.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.229.updatedAt","sections.31.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.230.createdAt","sections.31.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.230.updatedAt","sections.31.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.231.createdAt","sections.31.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.231.updatedAt","sections.31.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.232.createdAt","sections.31.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.232.updatedAt","sections.31.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.233.createdAt","sections.31.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.233.updatedAt","sections.31.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.234.createdAt","sections.31.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.234.updatedAt","sections.32.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.235.createdAt","sections.32.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.235.updatedAt","sections.32.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.236.createdAt","sections.32.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.236.updatedAt","sections.32.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.237.createdAt","sections.32.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.237.updatedAt","sections.32.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.238.createdAt","sections.32.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.238.updatedAt","sections.32.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.239.createdAt","sections.32.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.239.updatedAt","sections.32.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.240.createdAt","sections.32.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.240.updatedAt","sections.32.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.241.createdAt","sections.32.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.241.updatedAt","sections.32.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.242.createdAt","sections.32.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.242.updatedAt","sections.32.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.243.createdAt","sections.32.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.243.updatedAt","sections.32.modules.9.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.244.createdAt","sections.32.modules.9.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.244.updatedAt","sections.33.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.245.createdAt","sections.33.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.245.updatedAt","sections.33.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.246.createdAt","sections.33.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.246.updatedAt","sections.33.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.247.createdAt","sections.33.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.247.updatedAt","sections.33.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.248.createdAt","sections.33.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.248.updatedAt","sections.33.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.249.createdAt","sections.33.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.249.updatedAt","sections.33.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.250.createdAt","sections.33.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.250.updatedAt","sections.34.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.251.createdAt","sections.34.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.251.updatedAt","sections.34.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.252.createdAt","sections.34.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.252.updatedAt","sections.34.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.253.createdAt","sections.34.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.253.updatedAt","sections.34.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.254.createdAt","sections.34.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.254.updatedAt","sections.34.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.255.createdAt","sections.34.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.255.updatedAt","sections.34.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.256.createdAt","sections.34.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.256.updatedAt","sections.34.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.257.createdAt","sections.34.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.257.updatedAt","sections.35.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.258.createdAt","sections.35.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.258.updatedAt","sections.35.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.259.createdAt","sections.35.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.259.updatedAt","sections.35.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.260.createdAt","sections.35.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.260.updatedAt","sections.35.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.261.createdAt","sections.35.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.261.updatedAt","sections.35.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.262.createdAt","sections.35.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.262.updatedAt","sections.35.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.263.createdAt","sections.35.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.263.updatedAt","sections.35.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.264.createdAt","sections.35.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.264.updatedAt","sections.35.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.265.createdAt","sections.35.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.265.updatedAt","sections.35.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.266.createdAt","sections.35.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.266.updatedAt","sections.35.modules.9.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.267.createdAt","sections.35.modules.9.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.267.updatedAt","sections.35.modules.10.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.268.createdAt","sections.35.modules.10.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.268.updatedAt","sections.35.modules.11.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.269.createdAt","sections.35.modules.11.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.269.updatedAt","sections.35.modules.12.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.270.createdAt","sections.35.modules.12.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.270.updatedAt","sections.35.modules.13.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.271.createdAt","sections.35.modules.13.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.271.updatedAt","sections.35.modules.14.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.272.createdAt","sections.35.modules.14.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.272.updatedAt","sections.35.modules.15.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.273.createdAt","sections.35.modules.15.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.273.updatedAt","sections.35.modules.16.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.274.createdAt","sections.35.modules.16.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.274.updatedAt","sections.35.modules.17.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.275.createdAt","sections.35.modules.17.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.275.updatedAt","sections.35.modules.18.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.276.createdAt","sections.35.modules.18.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.276.updatedAt","sections.35.modules.19.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.277.createdAt","sections.35.modules.19.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.277.updatedAt","sections.35.modules.20.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.278.createdAt","sections.35.modules.20.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.278.updatedAt","sections.35.modules.21.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.279.createdAt","sections.35.modules.21.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.279.updatedAt","sections.36.modules.0.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.280.createdAt","sections.36.modules.0.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.280.updatedAt","sections.36.modules.1.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.281.createdAt","sections.36.modules.1.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.281.updatedAt","sections.36.modules.2.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.282.createdAt","sections.36.modules.2.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.282.updatedAt","sections.36.modules.3.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.283.createdAt","sections.36.modules.3.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.283.updatedAt","sections.36.modules.4.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.284.createdAt","sections.36.modules.4.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.284.updatedAt","sections.36.modules.5.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.285.createdAt","sections.36.modules.5.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.285.updatedAt","sections.36.modules.6.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.286.createdAt","sections.36.modules.6.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.286.updatedAt","sections.36.modules.7.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.287.createdAt","sections.36.modules.7.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.287.updatedAt","sections.36.modules.8.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.288.createdAt","sections.36.modules.8.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.288.updatedAt","sections.36.modules.9.createdAt":"$46:props:state:queries:0:state:data:meta:values:modules.289.createdAt","sections.36.modules.9.updatedAt":"$46:props:state:queries:0:state:data:meta:values:modules.289.updatedAt"},"referentialEqualities":{"modules.0":["sections.0.modules.0"],"modules.1":["sections.0.modules.1"],"modules.2":["sections.0.modules.2"],"modules.3":["sections.0.modules.3"],"modules.4":["sections.0.modules.4"],"modules.5":["sections.0.modules.5"],"modules.6":["sections.1.modules.0"],"modules.7":["sections.1.modules.1"],"modules.8":["sections.1.modules.2"],"modules.9":["sections.1.modules.3"],"modules.10":["sections.1.modules.4"],"modules.11":["sections.1.modules.5"],"modules.12":["sections.2.modules.0"],"modules.13":["sections.2.modules.1"],"modules.14":["sections.2.modules.2"],"modules.15":["sections.2.modules.3"],"modules.16":["sections.2.modules.4"],"modules.17":["sections.2.modules.5"],"modules.18":["sections.2.modules.6"],"modules.19":["sections.2.modules.7"],"modules.20":["sections.3.modules.0"],"modules.21":["sections.3.modules.1"],"modules.22":["sections.3.modules.2"],"modules.23":["sections.3.modules.3"],"modules.24":["sections.3.modules.4"],"modules.25":["sections.3.modules.5"],"modules.26":["sections.3.modules.6"],"modules.27":["sections.4.modules.0"],"modules.28":["sections.4.modules.1"],"modules.29":["sections.4.modules.2"],"modules.30":["sections.4.modules.3"],"modules.31":["sections.4.modules.4"],"modules.32":["sections.4.modules.5"],"modules.33":["sections.5.modules.0"],"modules.34":["sections.5.modules.1"],"modules.35":["sections.5.modules.2"],"modules.36":["sections.5.modules.3"],"modules.37":["sections.5.modules.4"],"modules.38":["sections.5.modules.5"],"modules.39":["sections.5.modules.6"],"modules.40":["sections.6.modules.0"],"modules.41":["sections.6.modules.1"],"modules.42":["sections.6.modules.2"],"modules.43":["sections.6.modules.3"],"modules.44":["sections.6.modules.4"],"modules.45":["sections.6.modules.5"],"modules.46":["sections.6.modules.6"],"modules.47":["sections.7.modules.0"],"modules.48":["sections.7.modules.1"],"modules.49":["sections.7.modules.2"],"modules.50":["sections.7.modules.3"],"modules.51":["sections.7.modules.4"],"modules.52":["sections.7.modules.5"],"modules.53":["sections.8.modules.0"],"modules.54":["sections.8.modules.1"],"modules.55":["sections.8.modules.2"],"modules.56":["sections.8.modules.3"],"modules.57":["sections.8.modules.4"],"modules.58":["sections.8.modules.5"],"modules.59":["sections.8.modules.6"],"modules.60":["sections.8.modules.7"],"modules.61":["sections.8.modules.8"],"modules.62":["sections.9.modules.0"],"modules.63":["sections.9.modules.1"],"modules.64":["sections.9.modules.2"],"modules.65":["sections.9.modules.3"],"modules.66":["sections.9.modules.4"],"modules.67":["sections.9.modules.5"],"modules.68":["sections.10.modules.0"],"modules.69":["sections.10.modules.1"],"modules.70":["sections.10.modules.2"],"modules.71":["sections.10.modules.3"],"modules.72":["sections.10.modules.4"],"modules.73":["sections.10.modules.5"],"modules.74":["sections.11.modules.0"],"modules.75":["sections.11.modules.1"],"modules.76":["sections.11.modules.2"],"modules.77":["sections.11.modules.3"],"modules.78":["sections.11.modules.4"],"modules.79":["sections.11.modules.5"],"modules.80":["sections.12.modules.0"],"modules.81":["sections.12.modules.1"],"modules.82":["sections.12.modules.2"],"modules.83":["sections.12.modules.3"],"modules.84":["sections.12.modules.4"],"modules.85":["sections.12.modules.5"],"modules.86":["sections.13.modules.0"],"modules.87":["sections.13.modules.1"],"modules.88":["sections.13.modules.2"],"modules.89":["sections.13.modules.3"],"modules.90":["sections.13.modules.4"],"modules.91":["sections.13.modules.5"],"modules.92":["sections.14.modules.0"],"modules.93":["sections.14.modules.1"],"modules.94":["sections.14.modules.2"],"modules.95":["sections.14.modules.3"],"modules.96":["sections.14.modules.4"],"modules.97":["sections.14.modules.5"],"modules.98":["sections.14.modules.6"],"modules.99":["sections.14.modules.7"],"modules.100":["sections.15.modules.0"],"modules.101":["sections.15.modules.1"],"modules.102":["sections.15.modules.2"],"modules.103":["sections.15.modules.3"],"modules.104":["sections.15.modules.4"],"modules.105":["sections.15.modules.5"],"modules.106":["sections.16.modules.0"],"modules.107":["sections.16.modules.1"],"modules.108":["sections.16.modules.2"],"modules.109":["sections.16.modules.3"],"modules.110":["sections.16.modules.4"],"modules.111":["sections.16.modules.5"],"modules.112":["sections.16.modules.6"],"modules.113":["sections.16.modules.7"],"modules.114":["sections.16.modules.8"],"modules.115":["sections.17.modules.0"],"modules.116":["sections.17.modules.1"],"modules.117":["sections.17.modules.2"],"modules.118":["sections.17.modules.3"],"modules.119":["sections.17.modules.4"],"modules.120":["sections.17.modules.5"],"modules.121":["sections.17.modules.6"],"modules.122":["sections.17.modules.7"],"modules.123":["sections.18.modules.0"],"modules.124":["sections.18.modules.1"],"modules.125":["sections.18.modules.2"],"modules.126":["sections.18.modules.3"],"modules.127":["sections.18.modules.4"],"modules.128":["sections.18.modules.5"],"modules.129":["sections.18.modules.6"],"modules.130":["sections.18.modules.7"],"modules.131":["sections.18.modules.8"],"modules.132":["sections.19.modules.0"],"modules.133":["sections.19.modules.1"],"modules.134":["sections.19.modules.2"],"modules.135":["sections.19.modules.3"],"modules.136":["sections.19.modules.4"],"modules.137":["sections.19.modules.5"],"modules.138":["sections.19.modules.6"],"modules.139":["sections.19.modules.7"],"modules.140":["sections.19.modules.8"],"modules.141":["sections.19.modules.9"],"modules.142":["sections.20.modules.0"],"modules.143":["sections.20.modules.1"],"modules.144":["sections.20.modules.2"],"modules.145":["sections.20.modules.3"],"modules.146":["sections.20.modules.4"],"modules.147":["sections.20.modules.5"],"modules.148":["sections.20.modules.6"],"modules.149":["sections.20.modules.7"],"modules.150":["sections.21.modules.0"],"modules.151":["sections.21.modules.1"],"modules.152":["sections.21.modules.2"],"modules.153":["sections.21.modules.3"],"modules.154":["sections.21.modules.4"],"modules.155":["sections.21.modules.5"],"modules.156":["sections.21.modules.6"],"modules.157":["sections.21.modules.7"],"modules.158":["sections.22.modules.0"],"modules.159":["sections.22.modules.1"],"modules.160":["sections.22.modules.2"],"modules.161":["sections.22.modules.3"],"modules.162":["sections.22.modules.4"],"modules.163":["sections.22.modules.5"],"modules.164":["sections.22.modules.6"],"modules.165":["sections.22.modules.7"],"modules.166":["sections.22.modules.8"],"modules.167":["sections.23.modules.0"],"modules.168":["sections.23.modules.1"],"modules.169":["sections.23.modules.2"],"modules.170":["sections.23.modules.3"],"modules.171":["sections.23.modules.4"],"modules.172":["sections.23.modules.5"],"modules.173":["sections.23.modules.6"],"modules.174":["sections.23.modules.7"],"modules.175":["sections.23.modules.8"],"modules.176":["sections.23.modules.9"],"modules.177":["sections.23.modules.10"],"modules.178":["sections.23.modules.11"],"modules.179":["sections.24.modules.0"],"modules.180":["sections.24.modules.1"],"modules.181":["sections.24.modules.2"],"modules.182":["sections.24.modules.3"],"modules.183":["sections.24.modules.4"],"modules.184":["sections.24.modules.5"],"modules.185":["sections.24.modules.6"],"modules.186":["sections.25.modules.0"],"modules.187":["sections.25.modules.1"],"modules.188":["sections.25.modules.2"],"modules.189":["sections.25.modules.3"],"modules.190":["sections.25.modules.4"],"modules.191":["sections.25.modules.5"],"modules.192":["sections.25.modules.6"],"modules.193":["sections.26.modules.0"],"modules.194":["sections.26.modules.1"],"modules.195":["sections.26.modules.2"],"modules.196":["sections.26.modules.3"],"modules.197":["sections.26.modules.4"],"modules.198":["sections.26.modules.5"],"modules.199":["sections.26.modules.6"],"modules.200":["sections.26.modules.7"],"modules.201":["sections.26.modules.8"],"modules.202":["sections.27.modules.0"],"modules.203":["sections.27.modules.1"],"modules.204":["sections.27.modules.2"],"modules.205":["sections.27.modules.3"],"modules.206":["sections.27.modules.4"],"modules.207":["sections.27.modules.5"],"modules.208":["sections.27.modules.6"],"modules.209":["sections.28.modules.0"],"modules.210":["sections.28.modules.1"],"modules.211":["sections.29.modules.0"],"modules.212":["sections.29.modules.1"],"modules.213":["sections.29.modules.2"],"modules.214":["sections.29.modules.3"],"modules.215":["sections.29.modules.4"],"modules.216":["sections.29.modules.5"],"modules.217":["sections.29.modules.6"],"modules.218":["sections.29.modules.7"],"modules.219":["sections.30.modules.0"],"modules.220":["sections.30.modules.1"],"modules.221":["sections.30.modules.2"],"modules.222":["sections.30.modules.3"],"modules.223":["sections.30.modules.4"],"modules.224":["sections.30.modules.5"],"modules.225":["sections.30.modules.6"],"modules.226":["sections.31.modules.0"],"modules.227":["sections.31.modules.1"],"modules.228":["sections.31.modules.2"],"modules.229":["sections.31.modules.3"],"modules.230":["sections.31.modules.4"],"modules.231":["sections.31.modules.5"],"modules.232":["sections.31.modules.6"],"modules.233":["sections.31.modules.7"],"modules.234":["sections.31.modules.8"],"modules.235":["sections.32.modules.0"],"modules.236":["sections.32.modules.1"],"modules.237":["sections.32.modules.2"],"modules.238":["sections.32.modules.3"],"modules.239":["sections.32.modules.4"],"modules.240":["sections.32.modules.5"],"modules.241":["sections.32.modules.6"],"modules.242":["sections.32.modules.7"],"modules.243":["sections.32.modules.8"],"modules.244":["sections.32.modules.9"],"modules.245":["sections.33.modules.0"],"modules.246":["sections.33.modules.1"],"modules.247":["sections.33.modules.2"],"modules.248":["sections.33.modules.3"],"modules.249":["sections.33.modules.4"],"modules.250":["sections.33.modules.5"],"modules.251":["sections.34.modules.0"],"modules.252":["sections.34.modules.1"],"modules.253":["sections.34.modules.2"],"modules.254":["sections.34.modules.3"],"modules.255":["sections.34.modules.4"],"modules.256":["sections.34.modules.5"],"modules.257":["sections.34.modules.6"],"modules.258":["sections.35.modules.0"],"modules.259":["sections.35.modules.1"],"modules.260":["sections.35.modules.2"],"modules.261":["sections.35.modules.3"],"modules.262":["sections.35.modules.4"],"modules.263":["sections.35.modules.5"],"modules.264":["sections.35.modules.6"],"modules.265":["sections.35.modules.7"],"modules.266":["sections.35.modules.8"],"modules.267":["sections.35.modules.9"],"modules.268":["sections.35.modules.10"],"modules.269":["sections.35.modules.11"],"modules.270":["sections.35.modules.12"],"modules.271":["sections.35.modules.13"],"modules.272":["sections.35.modules.14"],"modules.273":["sections.35.modules.15"],"modules.274":["sections.35.modules.16"],"modules.275":["sections.35.modules.17"],"modules.276":["sections.35.modules.18"],"modules.277":["sections.35.modules.19"],"modules.278":["sections.35.modules.20"],"modules.279":["sections.35.modules.21"],"modules.280":["sections.36.modules.0"],"modules.281":["sections.36.modules.1"],"modules.282":["sections.36.modules.2"],"modules.283":["sections.36.modules.3"],"modules.284":["sections.36.modules.4"],"modules.285":["sections.36.modules.5"],"modules.286":["sections.36.modules.6"],"modules.287":["sections.36.modules.7"],"modules.288":["sections.36.modules.8"],"modules.289":["sections.36.modules.9"]},"v":1}},"dataUpdateCount":1,"dataUpdatedAt":1792313539545,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["learningPaths","getBySlug"],{"input":{"slug":"lld-system-design"},"type":"query"}],"queryHash":"[[\"learningPaths\",\"getBySlug\"],{\"input\":{\"slug\":\"lld-system-design\"},\"type\":\"query\"}]"},{"dehydratedAt":1792313539930,"state":{"data":{"json":{"path":{"archivedAt":null,"id":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","slug":"lld-system-design","title":"Low-Level System Design","description":"Learn object-oriented design and design patterns, solve low-level design cases, and practise state transitions, persistence and error handling in real repositories and code reviews.","image":null,"color":"#0EA5E9","keyTopics":["Object-oriented design","SOLID principles","Design patterns","API and persistence design","Concurrency fundamentals","Clean architecture","Testing and maintainability","LLD interview preparation"],"estimatedHours":209.9,"problemCount":44,"visualizerCount":0,"quizCount":0,"learningCount":246,"difficulty":"INTERMEDIATE","idealFor":["Software developers","Backend and full-stack engineers","Interview candidates","Engineers improving design skills"],"prerequisites":["Basic programming and OOP concepts","Comfort with classes and interfaces","Familiarity with one OOP language"],"skillsGained":["Domain modeling","Class and API design","Applying SOLID effectively","Pattern selection and trade-offs","Concurrency-safe design","Maintainable code architecture"],"outcomes":["Design extensible object models","Build maintainable service components","Choose appropriate design patterns","Improve code quality and testability","Perform strongly in LLD interviews"],"overview":"This LLD learning path develops practical software design skills from object modeling to production-ready architecture decisions.\n\n**What you'll learn:**\n• OOP and UML fundamentals\n• SOLID and essential design principles\n• Creational, structural, and behavioral patterns\n• API, persistence, and caching design\n• Concurrency and resource management\n• End-to-end LLD case studies","createdAt":"2026-10-15T17:47:45.111Z","updatedAt":"2026-10-17T16:28:34.026Z","modules":[{"id":"seed_da74e17c73d4bdef48e2ebe0d48b75eb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"What Is Low-Level Design?","order":1,"contentType":"LEARNING","contentSlug":"what-is-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_c48df6e23317abe1aa7d89ebbd76a822","title":"Definition of Low-Level Design","order":0},{"id":"seed_b3d1a8779d86f4d06befc48e63ed12b7","title":"LLD as the Bridge Between Requirements and Code","order":1},{"id":"seed_883621a54638503b51e76c6b91f37ac5","title":"Scope of LLD: Classes, Interfaces, Methods, Interactions","order":2},{"id":"seed_018e60441576cefd008ee95324f6c752","title":"LLD as a Thinking Discipline, Not Just Documentation","order":3}]},{"id":"seed_778934f0d6849d48df17c1ad6c07e72b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"LLD vs HLD: Understanding the Design Spectrum","order":2,"contentType":"LEARNING","contentSlug":"lld-vs-hld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4432fe22326c42029f5fedd0ed797a29","title":"High-Level Design: System Architecture, Services, and Databases","order":0},{"id":"seed_f39f69d3e3145e30b2eaeb7ff9b603b4","title":"Low-Level Design: Classes, Objects, Methods, and Relationships","order":1},{"id":"seed_bc3847dc84c500eec3e43eda827fc17a","title":"How LLD Fits Within the Overall Design Process","order":2},{"id":"seed_9c25f773cee6aa7988593d434a3de228","title":"When to Focus on HLD vs LLD","order":3}]},{"id":"seed_95e3d95deccee4b3e3b64cac2d19f2d5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Why Low-Level Design Matters in Software Engineering","order":3,"contentType":"LEARNING","contentSlug":"why-lld-matters","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_bf127d37e00cea5cc8f7bb686ed1f611","title":"Code Maintainability and Readability","order":0},{"id":"seed_66300ad0a1e672acea0b931e9ec58f4f","title":"Reducing Technical Debt","order":1},{"id":"seed_bd9274a155a38f68cba58dacca055ef4","title":"Enabling Team Collaboration","order":2},{"id":"seed_617e719e6c159e65f105e3012e9a525a","title":"Supporting Testing and Debugging","order":3},{"id":"seed_c55450271c0fd9519cd7cb7f528ddd6e","title":"Foundation for Refactoring","order":4}]},{"id":"seed_094de77501d4b53e2f6f06692188724f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"The LLD Mindset — Thinking in Components","order":4,"contentType":"LEARNING","contentSlug":"lld-mindset-thinking-in-components","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_f95f3f996562ef23ae17a33f4c6915a6","title":"Breaking Systems into Manageable Pieces","order":0},{"id":"seed_d95ae9188172ca09218dc4aeedfe9a78","title":"Identifying Responsibilities and Boundaries","order":1},{"id":"seed_890b4d4453c0f80ae98fa5f8e347850b","title":"Thinking About Interactions Before Implementation","order":2},{"id":"seed_f89526fe0be8c85dbd2a0167a4c2eee3","title":"Balancing Flexibility with Simplicity","order":3}]},{"id":"seed_189f4cfae259fa06e7ded9a2582c6d2c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"LLD in Interviews vs Real-World Projects","order":5,"contentType":"LEARNING","contentSlug":"lld-in-interviews-vs-real-world","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_5f72e15e9a176181252c8e31ec3fbabf","title":"Interview LLD — Time-Constrained, Focused Scope","order":0},{"id":"seed_9faedd0d3d4a0107aa1717126a31f95e","title":"Real-World LLD — Iterative, Evolving, Team-Based","order":1},{"id":"seed_eb04bfd1ccf86fa00227072925ac68ff","title":"Common Interview Expectations","order":2},{"id":"seed_e1e2e17edf8006ce1df525548fe52c10","title":"Bridging Theory and Practice","order":3}]},{"id":"seed_6c846f026ab6f60428f58578dd8553a8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 1: Introduction To Lld","sectionOrder":1,"title":"Prerequisites & Learning Path","order":6,"contentType":"LEARNING","contentSlug":"lld-prerequisites-and-learning-path","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ec94603de2be05ddd1a611533e528fea","title":"Required Foundational Knowledge","order":0},{"id":"seed_de04a903659a51d571808226fa37e24f","title":"How This Curriculum Is Structured","order":1},{"id":"seed_73e4b36ab7ea38c8d3d2db06f549782c","title":"Recommended Practice Approach","order":2},{"id":"seed_c45b065326cf0e7a4d265c0ef53a1e3a","title":"Setting Expectations for Mastery","order":3}]},{"id":"seed_5f10ed873dedc742abcfabbe08d367b5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"From Procedural to Object-Oriented Thinking","order":1,"contentType":"LEARNING","contentSlug":"from-procedural-to-oo","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_18b57a5ff9332d9654c1c022b7154e20","title":"The Procedural Programming Paradigm","order":0},{"id":"seed_d47995ded64209f14d2cefde4d94b540","title":"The Object-Oriented Mental Model","order":1},{"id":"seed_7f0eeddfdf2ebdce0452dd54e789c19d","title":"Why the Shift Matters for Complex Systems","order":2},{"id":"seed_f4d45a0c2fa41c7eb8fb8de7a3e1e3c5","title":"Common Pitfalls in the Transition","order":3}]},{"id":"seed_46639e27cdc7109390b7ce754380d88b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Identifying Objects in Problem Statements","order":2,"contentType":"LEARNING","contentSlug":"identifying-objects-in-problem-statements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_c7301b4e41498afe1e1c015b9ea9567c","title":"Reading Requirements with an OO Lens","order":0},{"id":"seed_5c0765644fb49ad4c1ca61fb4dfab384","title":"Nouns as Potential Objects","order":1},{"id":"seed_22ad69a9722ef0d125bcb203e57cc079","title":"Verbs as Potential Methods","order":2},{"id":"seed_cc7dbc8820da8d37889deef65ffb3ad9","title":"Practicing Object Identification","order":3}]},{"id":"seed_9f5576f9b0d9e2b47c9b5dfc34604ecf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Entities, Attributes, and Behaviors","order":3,"contentType":"LEARNING","contentSlug":"entities-attributes-behaviors","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_89030b7253aa17227931782ea20aa030","title":"Understanding Entities — The Building Blocks of Your System","order":0},{"id":"seed_6aaaf4675ed7edd3dbe606d1f9e629ff","title":"Attributes — Properties That Describe Entities","order":1},{"id":"seed_0f4cc21cfc6f42a391f9e82ec960ba9a","title":"Behaviors — Actions That Entities Perform","order":2},{"id":"seed_941a3bf41009c43ec28605da2bb27bec","title":"Distinguishing Essential from Incidental Properties","order":3}]},{"id":"seed_eb81cacfbd69c4cbc7654161a604b12e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Relationships Between Objects","order":4,"contentType":"LEARNING","contentSlug":"relationships-between-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_b09a33b54d18b0db9539bb95135e1fdf","title":"Association — Objects That Know Each Other","order":0},{"id":"seed_9fa848ce7ece5e1f36dcd8a871c7e3d8","title":"Dependency — Objects That Use Each Other","order":1},{"id":"seed_b046899ecfce047310075e003182c407","title":"Aggregation — Whole-Part with Independent Lifecycle","order":2},{"id":"seed_43bec1bf740dc344b1c8285188dcc362","title":"Composition — Whole-Part with Dependent Lifecycle","order":3}]},{"id":"seed_636bd1ad92e89db9396cd1b368eb868f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"State and Behavior Modeling","order":5,"contentType":"LEARNING","contentSlug":"state-and-behavior-modeling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_c58a4afac64f29772ea5ffb7f6c91b15","title":"Object State — The Current Values of Attributes","order":0},{"id":"seed_dd7217b863688bcb244d6c6dfa07d879","title":"State Transitions and Lifecycles","order":1},{"id":"seed_2ec6c13ce1291d97bde4a14d7018abaa","title":"Behavior as State Manipulation","order":2},{"id":"seed_efc2f7a1565497cc6459189c3a79bc2d","title":"Stateful vs Stateless Design","order":3}]},{"id":"seed_36d3d57efb9dffdd64a847a234304e2d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 2: Thinking In Objects","sectionOrder":2,"title":"Real-World to Code Translation","order":6,"contentType":"LEARNING","contentSlug":"real-world-to-code-translation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ca77828af368f163fa7bc7247c70bb44","title":"From Domain Concepts to Classes","order":0},{"id":"seed_09f6ddd1476e367dc4ff77460f173890","title":"Domain Language in Code — Ubiquitous Language","order":1},{"id":"seed_f9ccb3aea6892d0e43b0faf241513cd9","title":"Avoiding Implementation-Driven Design","order":2},{"id":"seed_56f8419e8e6a0ce9d9b077a65d16c3ba","title":"Validating Design Against Requirements","order":3}]},{"id":"seed_dc7beec34ee4458aee0b87574abf46d1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Why We Need Design Diagrams","order":1,"contentType":"LEARNING","contentSlug":"why-we-need-design-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_bef8cc0ad163ad2dbe98b119254a7067","title":"Communicating Complex Ideas — The Limits of Words","order":0},{"id":"seed_69831b32fd4d35d2f940385cc924fc63","title":"Design Documentation for Teams — Creating Persistent Knowledge","order":1},{"id":"seed_6e8670b5d142ee77aeab3e2bac554cf6","title":"Visual Validation of Design Decisions — Diagrams as Design Proofs","order":2},{"id":"seed_ab92577cf1ec290bd8b68fb69c30ac75","title":"Diagrams as Thinking Tools — Externalizing the Design Process","order":3}]},{"id":"seed_a1542f810360eee6eefbd9bffc15b3ed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"UML Overview — The Standard Language","order":2,"contentType":"LEARNING","contentSlug":"uml-overview","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_681d3194e2d4e9b3edfd8cc5ce71e027","title":"What is UML (Unified Modeling Language)","order":0},{"id":"seed_863f35833c4b5055e1792709e0c5c70b","title":"Brief History and Purpose of UML","order":1},{"id":"seed_6e4d4bb3f7c5e2636423bdd170be83d2","title":"UML Diagram Categories","order":2},{"id":"seed_e1c26e51aaa08732f4b0587263d7889c","title":"When to Use UML vs Informal Diagrams","order":3}]},{"id":"seed_283778a4a6c84cfa10aca570c814a281","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Class Diagrams — Structure Representation","order":3,"contentType":"LEARNING","contentSlug":"class-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_cec6ef02b672bfc0bb64d3307b3f310a","title":"Class Notation — Name, Attributes, Methods","order":0},{"id":"seed_e4e729c2338272b037c74cc6dfe4fc47","title":"Visibility Markers — Public, Private, Protected","order":1},{"id":"seed_47f779a8c0c93f5de548ddb23a94198d","title":"Static and Abstract Notation","order":2},{"id":"seed_a586eb15d9dce0d44f6d2bfca921b690","title":"Reading and Creating Class Diagrams","order":3}]},{"id":"seed_9c69001e4a0889eaee6f2ba756e288de","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Relationships: Association, Aggregation, Composition","order":4,"contentType":"LEARNING","contentSlug":"uml-relationships","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_72d78d000a18dfadd6b03dbce111d425","title":"Association Lines and Multiplicity","order":0},{"id":"seed_491a2649e6f07dc9539d63013fc03de0","title":"Aggregation — Hollow Diamond","order":1},{"id":"seed_7b30b3344779d327f708ab24c9310256","title":"Composition — Filled Diamond","order":2},{"id":"seed_ca01bd4695944e64ed252d1c68d2ed7a","title":"Inheritance — Hollow Triangle Arrow","order":3},{"id":"seed_f516458a5180415eeb24869f18f4d83a","title":"Dependency — Dashed Arrow","order":4}]},{"id":"seed_95e6369d513b75eab5ea405d4fdb618f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Sequence Diagrams — Behavior Over Time","order":5,"contentType":"LEARNING","contentSlug":"sequence-diagrams-behavior-over-time","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_303051a206bb4f36c8d133c86524a785","title":"Objects as Lifelines","order":0},{"id":"seed_d84501dee6f685fb00b523831d8df460","title":"Messages Between Objects","order":1},{"id":"seed_0727784f914737e7e3941b390aa1fe73","title":"Synchronous vs Asynchronous Calls","order":2},{"id":"seed_356bc3588ac310309fcf5372748e5e3b","title":"Return Values and Self-Calls","order":3},{"id":"seed_aae1a6c1334939101ebfd2e5df3f0792","title":"Fragments: Loops, Conditionals","order":4}]},{"id":"seed_0ed28be5ecf1baf9f05d40bac9932ca7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Use Case Diagrams — Requirements Capture","order":6,"contentType":"LEARNING","contentSlug":"use-case-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_96eb547b703183fa83a52bac941fb2a2","title":"Actors and Use Cases — The Foundation of Requirements Visualization","order":0},{"id":"seed_7a5e2fea5e50bdcd63308f655af2c3d8","title":"System Boundaries — Defining What's In and What's Out","order":1},{"id":"seed_36727a455f4171835bd147a80b3aa920","title":"Include and Extend Relationships — Modeling Use Case Dependencies","order":2},{"id":"seed_56e9b95fa367b5ccb71c351e6ef93fbf","title":"Use Cases for Requirement Gathering — From Vision to Specification","order":3}]},{"id":"seed_bf1cae02bf90d7885655b40d7756bb7a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"Activity & State Diagrams — Overview","order":7,"contentType":"LEARNING","contentSlug":"activity-state-diagrams","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4486a71af3fe8df853aee183f0117528","title":"Activity Diagrams — Workflow and Process","order":0},{"id":"seed_277ca2c38c1b7a764b673c8eae7d09cb","title":"State Diagrams — Object Lifecycle","order":1},{"id":"seed_18d2676a3076b31ba841a66eabee3bc7","title":"When to Use Each — Choosing the Right Behavioral Diagram","order":2},{"id":"seed_ef543ebffaf8585e2493af7ee3d121d9","title":"Keeping Diagrams Simple","order":3}]},{"id":"seed_27be8950e0a7ca2b55e789d017759008","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 3: Uml Design Representation","sectionOrder":3,"title":"When to Use Which Diagram","order":8,"contentType":"LEARNING","contentSlug":"when-to-use-which-diagram","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_d9961c18612af89f35442841884ebc95","title":"Class Diagrams for Structure","order":0},{"id":"seed_4b068dede72ae9a7d1dacba70d3c54d9","title":"Sequence Diagrams for Interactions","order":1},{"id":"seed_fe5aab26b1032535b4ab82240df9bea6","title":"Use Case Diagrams for Requirements","order":2},{"id":"seed_5b405552e51500938300d302697920f4","title":"Matching Diagram Type to Communication Goal","order":3}]},{"id":"seed_166823daca2d18635c97caefb96c2e41","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"What Is a Class? What Is an Object?","order":1,"contentType":"LEARNING","contentSlug":"what-is-class-what-is-object","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_fc2c226fc82cd554339a5404a71ddc9d","title":"Class as a Blueprint","order":0},{"id":"seed_56dc1b06ea1cde7e4f209d3231806919","title":"Object as an Instance","order":1},{"id":"seed_ba76eda72fe96e1835841a3089bf6815","title":"Class vs Object Relationship","order":2},{"id":"seed_6026408c24da1c65bf9e947e326a2d75","title":"Multiple Objects from One Class","order":3}]},{"id":"seed_322634ed40774e4a77015e0433179d06","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Attributes and Methods","order":2,"contentType":"LEARNING","contentSlug":"attributes-and-methods","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_169f9061cf68d8b2c30ef8d9eaaf3a9a","title":"Attributes — Object State","order":0},{"id":"seed_20d794aae3ab856d3914c5eb17618104","title":"Methods — Object Behavior","order":1},{"id":"seed_abbee12f38d2642d81d534f074eb669e","title":"Designing Meaningful Attributes","order":2},{"id":"seed_0c5d688f46c8f73baf2fcd97f6c16c57","title":"Designing Cohesive Methods","order":3}]},{"id":"seed_f6705dbb6228a71e08a4ad4187941ec9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Constructors and Object Lifecycle","order":3,"contentType":"LEARNING","contentSlug":"constructors-and-object-lifecycle","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ba117750442396942c2800b2bb8428ed","title":"Constructor Purpose and Types","order":0},{"id":"seed_20f8631269877483e468d43d1d112844","title":"Default vs Parameterized Constructors","order":1},{"id":"seed_9c70567c02bcec67297a79565ff2e236","title":"Object Initialization Best Practices","order":2},{"id":"seed_870da57ff62d8f94cbdac4470c01ad7b","title":"Object Destruction and Cleanup","order":3}]},{"id":"seed_6b800f95d9a444455534fee651269739","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Access Modifiers and Visibility","order":4,"contentType":"LEARNING","contentSlug":"access-modifiers-visibility","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_c728d8d1fac7720b9efc0d31e638b404","title":"Public — Accessible Everywhere","order":0},{"id":"seed_f8ae7bcda134f5a0fb25e4a862da14b8","title":"Private — Accessible Within Class Only","order":1},{"id":"seed_3fb4d2c61fe7a664930f3996523e349f","title":"Protected — Accessible in Inheritance Hierarchy","order":2},{"id":"seed_a18612169625872647e37b43c37645e4","title":"Package/Internal — Language-Specific Access","order":3}]},{"id":"seed_dcaea37542bb34f9c16f4c110d57ffb4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Static vs Instance Members","order":5,"contentType":"LEARNING","contentSlug":"static-vs-instance-members","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ce19642c5fbbd4a38672062b6d007991","title":"Instance Members — Per-Object State and Behavior","order":0},{"id":"seed_8026a08069fc32c5e71181544ba16951","title":"Static Members — Per-Class State and Behavior","order":1},{"id":"seed_fadaacd171255262fd3959b7f2b68ceb","title":"When to Use Static — Design Criteria and Patterns","order":2},{"id":"seed_5d61f9f8dc3c39b9681a6d7c15567578","title":"Static Method Limitations — Constraints and Design Implications","order":3}]},{"id":"seed_a3e5332d704341d5c3a9fb945a5378f6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Object Identity, Equality, and Hashing","order":6,"contentType":"LEARNING","contentSlug":"object-identity-equality-hashing","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_cfcfd464c9769a0cfbf7e9a0fbc1924a","title":"Object Identity — The Concept of Same Memory Location","order":0},{"id":"seed_cdf5cccf20770591cb728d97b24979cc","title":"Object Equality — The Concept of Same Value","order":1},{"id":"seed_ebe3740423d293132b965f808120e5c0","title":"Implementing equals() and hashCode()","order":2},{"id":"seed_ad053f163a5b2d0d237b2b99da9f09e4","title":"Consistency Requirements","order":3}]},{"id":"seed_474d8467f9840e66de7ddcae3dad112d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 4: Classes Objects The Building Blocks","sectionOrder":4,"title":"Designing Clean Classes: The Art of Well-Structured Object-Oriented Code","order":7,"contentType":"LEARNING","contentSlug":"designing-clean-classes","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_0cee791f6f17e0ac458e5cb7f3398cb7","title":"Single Purpose Classes: The Foundation of Clean Design","order":0},{"id":"seed_501604165b35539e92bc0305b9b0cbdb","title":"Meaningful Names: The Art of Intention-Revealing Class Names","order":1},{"id":"seed_6da660280f89a883604136f9c174b575","title":"Appropriate Size: Finding the Right Balance for Class Design","order":2},{"id":"seed_9a45c3bf2b89bcb24dbafcfcb8f348b5","title":"Cohesive Members: Creating Unity Within Classes","order":3},{"id":"seed_b5bee481b662dd6954120bfc6bb9ce7f","title":"Class Design Checklist: A Practical Guide to Clean Classes","order":4}]},{"id":"seed_bb27ea6e1969ed891d9e206258f88ad8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"What Is Encapsulation?","order":1,"contentType":"LEARNING","contentSlug":"what-is-encapsulation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_d29cddc38f2e3188e4e40f1de218d667","title":"Definition of Encapsulation","order":0},{"id":"seed_0fab2b39c459f731e172020ee540a2fa","title":"Bundling Data and Behavior","order":1},{"id":"seed_4b9ec4ef3e218b151b4bf0a06f0ea6db","title":"Hiding Implementation Details","order":2},{"id":"seed_690bc9dbef61b800768a09dd7137eada","title":"Why Encapsulation Matters","order":3}]},{"id":"seed_9b27cac6c031352578845b4bc3bbef84","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Data Hiding Principles","order":2,"contentType":"LEARNING","contentSlug":"data-hiding-principles","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_30c145b282cbfe632c307eafeee2b015","title":"Private Fields, Public Interface","order":0},{"id":"seed_b514f679ec7f70f22a7c06723d310ee3","title":"Controlling Access to State","order":1},{"id":"seed_3280717d50694844da4a17bec59fc040","title":"Preventing Invalid State","order":2},{"id":"seed_8911e2a2b71f2c3b62c5160ac53714ea","title":"Encapsulation as Protection","order":3}]},{"id":"seed_6a3cd03202849aa2f73df3c833338375","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Getters and Setters — When and Why","order":3,"contentType":"LEARNING","contentSlug":"getters-and-setters-when-and-why","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_f6b3600598c234ff1a1644d7dc800af4","title":"Purpose of Accessors","order":0},{"id":"seed_560bbf33a5dcc54beddae9d1bbfb61c9","title":"When to Use Getters","order":1},{"id":"seed_7863949d6bcb8001003e8f105bea501c","title":"When to Avoid Setters","order":2},{"id":"seed_c08ebdcf81b0698f083f217e1e760fcd","title":"Tell, Don't Ask Principle Introduction","order":3}]},{"id":"seed_6c546cfca78f519dd607364bc8c14bf0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Immutable Objects — Unchanging by Design","order":4,"contentType":"LEARNING","contentSlug":"immutable-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_bd4ce78e38e24222020cbf106efb0670","title":"What Is Immutability","order":0},{"id":"seed_60e81025665a0d9c9757fb517648d3bc","title":"Benefits: Thread Safety, Simplicity, and Beyond","order":1},{"id":"seed_def54c8484877c9c73eea7d2be1523f5","title":"Designing Immutable Classes","order":2},{"id":"seed_2fed94761ea74b0ec63608b25fe66028","title":"Immutability Trade-offs","order":3}]},{"id":"seed_34de1762027e2db0acb12ca78bb5c2cc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Defensive Copying: Preserving Object Integrity","order":5,"contentType":"LEARNING","contentSlug":"defensive-copying","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_3cbfe2a6db77692915a3f13fba322a94","title":"The Problem of Mutable References","order":0},{"id":"seed_d43b50acc1269b5b270794837b0495d6","title":"Defensive Copy on Input","order":1},{"id":"seed_d2e3f3c98df713c217d414df0b6e2a13","title":"Defensive Copy on Output","order":2},{"id":"seed_182c2e2bf21b0683f74328febc5f5671","title":"When Defensive Copying Is Necessary","order":3}]},{"id":"seed_60b4909c83f766a2dbf0c4dd01ad31bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 5: Encapsulation Protecting Data Behavior","sectionOrder":5,"title":"Encapsulation in Practice","order":6,"contentType":"LEARNING","contentSlug":"encapsulation-in-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_27cd0fdb61a3d2d9501eba6a0cda27b5","title":"Encapsulation Code Examples","order":0},{"id":"seed_561c5c7350fa1d86171fdb3b0c4556e7","title":"Common Encapsulation Mistakes","order":1},{"id":"seed_e726b2df6671788683028384ce675ea4","title":"Refactoring for Better Encapsulation","order":2},{"id":"seed_ab70cd0f4d49638a1910a1879262889e","title":"Encapsulation Checklist","order":3}]},{"id":"seed_47dc919f28df10d59a5d56f472412545","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"What Is Inheritance?","order":1,"contentType":"LEARNING","contentSlug":"what-is-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_1d667d669af79cae333db6b53f7578dd","title":"Definition of Inheritance","order":0},{"id":"seed_804eb39a4fb2072ff86c5cbc267d7801","title":"Parent/Child (Superclass/Subclass) Relationship","order":1},{"id":"seed_2190beeb3b547b7dfc8f417dbfbcaaa8","title":"Inheriting Attributes and Methods","order":2},{"id":"seed_f82270a7dd1762af5f7502507f397e41","title":"Inheritance as Specialization","order":3}]},{"id":"seed_79f6c0639dbfeb8400a38ce23f02a799","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"The IS-A Relationship: When and Why to Use Inheritance","order":2,"contentType":"LEARNING","contentSlug":"is-a-relationship","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_c023b2a8b857791817a588bdc27de17a","title":"When Inheritance Is Appropriate","order":0},{"id":"seed_54c53946ea2999d269d911dcf5be5881","title":"IS-A Test for Inheritance","order":1},{"id":"seed_aa8598aee31d62bf77a035273ead01a8","title":"Common Inheritance Mistakes","order":2},{"id":"seed_867366057e79a5c824d8825efc4c811c","title":"Inheritance for Behavior, Not Just Code Reuse","order":3}]},{"id":"seed_a2d0a67913ddadcd3ad88d6d6c36eab5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Method Overriding","order":3,"contentType":"LEARNING","contentSlug":"method-overriding","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_18497f8924218b1eed0736108d6caca9","title":"Redefining Inherited Methods","order":0},{"id":"seed_7eccda0d043e1bf7725a6fca154990c6","title":"Override Rules and Constraints","order":1},{"id":"seed_fa65c0cf3f9ecd6ec19ed9cb8546da75","title":"Calling Parent Method with Super","order":2},{"id":"seed_b3a915573bac476e280b10d738764c7e","title":"Covariant Return Types","order":3}]},{"id":"seed_d85594dc748eccdbea4005e2f40df194","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"The super Keyword and Chain Calls","order":4,"contentType":"LEARNING","contentSlug":"super-keyword-chain-calls","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4b8874f866a3929f85c2b9e112bcaf83","title":"Accessing Parent Class Members","order":0},{"id":"seed_1439c87ac44c91cf4fdc67941a8178bb","title":"Constructor Chaining","order":1},{"id":"seed_ddddd158ed59c4052b114680e5241478","title":"Method Chaining with super","order":2},{"id":"seed_fbdbc2bdb20aa2141aefb7b60d221077","title":"Initialization Order","order":3}]},{"id":"seed_97468a185509f26eb4d956c2798f1bf1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Designing Sound Inheritance Hierarchies","order":5,"contentType":"LEARNING","contentSlug":"inheritance-hierarchies-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e9e624277b21a11b03e06bfd14c55b47","title":"Shallow vs Deep Hierarchies","order":0},{"id":"seed_632856c6a2292a0f3b70ff06d92d1832","title":"Single vs Multiple Inheritance","order":1},{"id":"seed_1f36468260097bd7699a5cfd22ef8162","title":"The Diamond Problem","order":2},{"id":"seed_f3ba082c9998ce5287dd3387c5aae5c3","title":"Designing Inheritance Hierarchies","order":3}]},{"id":"seed_9bdca43d2315b271e35a2ef8e395b55d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"When Inheritance Goes Wrong","order":6,"contentType":"LEARNING","contentSlug":"when-inheritance-goes-wrong","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_72ae53d7c87f48e47989ce1e3ad91405","title":"The Fragile Base Class Problem","order":0},{"id":"seed_bcbc8884f1014bbdcb4f41b8fc02922a","title":"Breaking Encapsulation Through Inheritance","order":1},{"id":"seed_6dc01c18b269f90ede7cc768b3a31344","title":"Rigid Hierarchies — The Inflexibility Problem","order":2},{"id":"seed_96c71c3cf98b418740199eda65c83978","title":"Signs of Inheritance Misuse — Recognizing Anti-patterns","order":3}]},{"id":"seed_b7cd866ae2fc8c3008e94a6da4e735c5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 6: Inheritance Reuse Hierarchies","sectionOrder":6,"title":"Abstract Classes — Incomplete Contracts and Partial Implementations","order":7,"contentType":"LEARNING","contentSlug":"abstract-classes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e18188f2bce7034e8c24ee73ade05c71","title":"What Is an Abstract Class","order":0},{"id":"seed_471d0110bccfe83ae4455a24cb2ccaba","title":"Abstract Methods — Contracts Without Implementation","order":1},{"id":"seed_db3d2f18ce956322ee17fe761f50cd0e","title":"When to Use Abstract Classes","order":2},{"id":"seed_02e13691af54a75d49a98d3fe8fad1de","title":"Abstract Class vs Interface — The Critical Distinction","order":3}]},{"id":"seed_4e626fb84a410929e4cb3ed05baaad0a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"What Is Polymorphism?","order":1,"contentType":"LEARNING","contentSlug":"what-is-polymorphism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_fc5c3aaf9cfc7b69c0d6c0338ef65618","title":"Definition of Polymorphism — Many Forms","order":0},{"id":"seed_3d2cc5adce0c990376c8ef90586d65a0","title":"Polymorphism as Flexibility Enabler","order":1},{"id":"seed_620de0e66fa1282d4ba42d8109710372","title":"Types of Polymorphism","order":2},{"id":"seed_0434442dbe6801022982f71d8d91337e","title":"Why Polymorphism Matters","order":3}]},{"id":"seed_dedd248652f91e3dcb7f27d95d7a5e7f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Compile-Time vs Runtime Polymorphism","order":2,"contentType":"LEARNING","contentSlug":"compile-time-vs-runtime-polymorphism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_9a34cccf37de090acf9243188b51ab4b","title":"Static (Compile-Time) Polymorphism","order":0},{"id":"seed_0b6b3af16965fce38f299f202f874045","title":"Dynamic (Runtime) Polymorphism","order":1},{"id":"seed_7dca96fe2bd4e402db653fa2f5e401d2","title":"How the Compiler/Runtime Resolves Calls","order":2},{"id":"seed_f3fd874e7d8760ef4dfec6a4e2399abe","title":"Performance Considerations","order":3}]},{"id":"seed_a3ed79c43d060af220f5074a8150a9e1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Method Overloading","order":3,"contentType":"LEARNING","contentSlug":"method-overloading","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_fa056f1c0e3b510a618334bd1ac693b7","title":"Same Name, Different Parameters","order":0},{"id":"seed_748dd98cb5f59f78b655f2bd7e5e3b42","title":"Overloading Rules","order":1},{"id":"seed_18f3f669d0fbf8ae9c2b4741752ba931","title":"When to Use Overloading","order":2},{"id":"seed_ba2a8a024ea8eaa76735dcd5b674ee0d","title":"Overloading Pitfalls","order":3}]},{"id":"seed_da3d93f57df0f222a390ae11845b960f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Method Overriding — The Engine of Runtime Polymorphism","order":4,"contentType":"LEARNING","contentSlug":"method-overriding-revisited","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_81ca3cfed422a38fdea5fdb70d3d30cf","title":"Overriding for Polymorphic Behavior","order":0},{"id":"seed_2797d134669e2d4290790991125a6bf3","title":"Virtual Method Dispatch","order":1},{"id":"seed_c7b2381519f4839937615cca8f2950f9","title":"Override Annotations","order":2},{"id":"seed_0c8160aace49bbb5d67565a4171f190b","title":"Overriding and Liskov Substitution Preview","order":3}]},{"id":"seed_71f77ac4a1f0c804e293fb081918cf02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Polymorphism Through Interfaces","order":5,"contentType":"LEARNING","contentSlug":"polymorphism-through-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_3ec72fc5f83d6db3429da7f2df29426f","title":"Interfaces as Contracts","order":0},{"id":"seed_d4af8b79776e19f446a746c339c89993","title":"Implementing Multiple Interfaces","order":1},{"id":"seed_4e0928c3d7bf493b00798e38c4889427","title":"Interface Polymorphism Examples","order":2},{"id":"seed_de1f94fd4f5f95b6fe2201f4629aea7b","title":"Interfaces vs Abstract Classes","order":3}]},{"id":"seed_168e03dd8b559d363713e2851dd8c0eb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"The Power of Programming to Interfaces","order":6,"contentType":"LEARNING","contentSlug":"programming-to-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_1c3c89548d86dab1d732393847bc8640","title":"Depending on Abstractions","order":0},{"id":"seed_f6bdca46ac843d3178395522f6c19df9","title":"Flexibility Through Interfaces","order":1},{"id":"seed_78bbd6556d37a312ac399e5896b13c86","title":"Reducing Coupling","order":2},{"id":"seed_af353954d43186ab66cc6ac6751f3cce","title":"Interface-Based Design","order":3}]},{"id":"seed_07ce71b316ac60e58a6c1e713d498fc9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 7: Polymorphism Flexible Behavior","sectionOrder":7,"title":"Polymorphism Patterns in Practice","order":7,"contentType":"LEARNING","contentSlug":"polymorphism-patterns-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_71fa87b4f719d41c7b7f50be5b3e06ec","title":"Factory Methods Using Polymorphism","order":0},{"id":"seed_c8b825629421d40c31d8c9db1efb151d","title":"Strategy Using Polymorphism","order":1},{"id":"seed_ea00c313c75f4ab3ab6bdfc593a96f1d","title":"Polymorphic Collections","order":2},{"id":"seed_e8f4278d53c329d3c284a163c3788359","title":"Real-World Polymorphism Examples","order":3}]},{"id":"seed_ab5f84de0eac1b05fd85268689f30bcc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"What Is Abstraction?","order":1,"contentType":"LEARNING","contentSlug":"what-is-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.164Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_caf4df588be677bdcdd899cb77b36108","title":"Definition of Abstraction","order":0},{"id":"seed_bc985f8375c20d94863a1ac8371e2be9","title":"Abstraction as Simplification","order":1},{"id":"seed_c8cb83886f64b9148b3ad6897a12ce56","title":"Abstraction Levels","order":2},{"id":"seed_64773c29c70c8fed2fa9e9622dc480e1","title":"Abstraction vs Encapsulation","order":3}]},{"id":"seed_5fb5b497f96b7fbc6bb53b64300a0ea6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Abstract Classes vs Interfaces","order":2,"contentType":"LEARNING","contentSlug":"abstract-classes-vs-interfaces","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e6be1e287fb6d80a8a23e977ffbc6790","title":"Abstract Class — Partial Implementation","order":0},{"id":"seed_7fbda89f6593f95bdba8c72ef52d1636","title":"Interface — Pure Contract","order":1},{"id":"seed_55e1769af489f0af2e9e88752ce5ab74","title":"When to Use Abstract Classes","order":2},{"id":"seed_b3298b8db41336b5e488682d2f11cf47","title":"When to Use Interfaces","order":3},{"id":"seed_81ac09f0c6fe9c20ebb37d00449c0912","title":"Modern Interface Features — Default Methods","order":4}]},{"id":"seed_9262b09d5fb81fcb4b3f9fb7553ebfd1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Designing for Abstraction","order":3,"contentType":"LEARNING","contentSlug":"designing-for-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_bbde393b4fc534c28c17ba4431ea4bd8","title":"Identifying Abstraction Boundaries","order":0},{"id":"seed_30b569a974cd7e271b73ebf8c5d445bb","title":"Hiding Implementation Details","order":1},{"id":"seed_b37852eb66de57fb868ed5a343e6cd61","title":"Stable Interfaces, Flexible Implementations","order":2},{"id":"seed_c5dd09d3351beeb4866958bc7fcb2db1","title":"Abstraction in Layered Design","order":3}]},{"id":"seed_49c0f381a40c7f1881a5c8eaefe09fe1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Abstraction Levels in System Design","order":4,"contentType":"LEARNING","contentSlug":"abstraction-levels-in-system-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_f30ba8f56a7f8c35f891ebf4abb6d836","title":"High-Level Abstractions","order":0},{"id":"seed_7cf5cd1f8350fa5bdd3099ebd1f9ecb2","title":"Low-Level Abstractions","order":1},{"id":"seed_e8eac5f29d91ed0c26838517f33caf2b","title":"Leaky Abstractions","order":2},{"id":"seed_77714050ecdd4ec5599150ac2e1de80a","title":"Abstraction Trade-offs","order":3}]},{"id":"seed_ca93cf0151c8626319950a591901b385","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"The Cost of Wrong Abstractions","order":5,"contentType":"LEARNING","contentSlug":"cost-of-wrong-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_608a2efe0fb9806bedcab55551f23e78","title":"Over-Abstraction — When Abstractions Become Obstacles","order":0},{"id":"seed_d72bffd92d0badb5d2eebdd251b1b9d9","title":"Under-Abstraction — The Hidden Tax of Concrete Code","order":1},{"id":"seed_f866f8d9738f5ad67ae43df40b300772","title":"Premature Abstraction — The Timing Problem","order":2},{"id":"seed_08ffacb04e0576110c36d0d576bd9c89","title":"Signs of Wrong Abstraction — A Diagnostic Framework","order":3}]},{"id":"seed_b06442dfc12620e36515fae550b9e224","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 8: Abstraction Managing Complexity","sectionOrder":8,"title":"Refactoring Toward Better Abstractions","order":6,"contentType":"LEARNING","contentSlug":"refactoring-toward-better-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_10a0eb8b0c7e459f857e93c4598e7e64","title":"Identifying Abstraction Opportunities","order":0},{"id":"seed_a5ee2dd6d1c01c538aeb222ec5656768","title":"Extracting Interfaces","order":1},{"id":"seed_96aa082ed0b4bf8401f7a5775219eb66","title":"Introducing Abstract Classes","order":2},{"id":"seed_94d9824eb8bb276f34e968148a75268b","title":"Iterative Abstraction Improvement","order":3}]},{"id":"seed_2a008b9deb6fece573c136f5bf4bc3f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Revisiting Inheritance Problems","order":1,"contentType":"LEARNING","contentSlug":"revisiting-inheritance-problems","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_0c970ec7979185a4d89f64136a43e44a","title":"Tight Coupling in Inheritance","order":0},{"id":"seed_b592c5a0d5a6bf70f95fb7b94a8f5389","title":"Fragile Base Class Revisited","order":1},{"id":"seed_27b98fc9f6ba38c48529cde0e0397013","title":"Inheritance Hierarchy Rigidity","order":2},{"id":"seed_191d4f4e125a88ce8fe1badbdb84f18c","title":"The Need for Alternatives","order":3}]},{"id":"seed_a4250aceb61207a618622e21034646ed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"What Is Composition?","order":2,"contentType":"LEARNING","contentSlug":"what-is-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_9e342f86de5042679f7d41bc43815967","title":"Definition of Composition","order":0},{"id":"seed_8038d2708ee1fb0bd6c8e3b82ed5af35","title":"Objects Containing Other Objects","order":1},{"id":"seed_9e69cd3176c5dabed70049f831f404e7","title":"Building Complex Objects from Simple Ones","order":2},{"id":"seed_f43e8a69b52269a75283b2aac350a078","title":"Composition as Assembly","order":3}]},{"id":"seed_78c3a03818aca688523d67eda9903eee","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"HAS-A vs IS-A Relationships","order":3,"contentType":"LEARNING","contentSlug":"has-a-vs-is-a-relationships","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_cfc051195a49c79a75119dfe161a06da","title":"IS-A — The Inheritance Relationship","order":0},{"id":"seed_f3207331f58ed816de25721f851af605","title":"HAS-A — The Composition Relationship","order":1},{"id":"seed_da5266231dd65ae36a46533e622604cc","title":"Testing for the Right Relationship","order":2},{"id":"seed_7558763ddda92b640797d4eb58b95f67","title":"Common Relationship Mistakes","order":3}]},{"id":"seed_eff66edfca8ce63a1493cbe8b5ecdfe4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Favor Composition Over Inheritance — The Critical Design Choice","order":4,"contentType":"LEARNING","contentSlug":"favor-composition-over-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e26fb6e0f2ae0e42f73782b2c51d0f03","title":"The 'Favor Composition Over Inheritance' Principle Explained","order":0},{"id":"seed_9622520d88288e05362b4ffe61c4679d","title":"Why Composition is Often Preferred","order":1},{"id":"seed_c761cd316a717f922d10233caa32e9ea","title":"Flexibility Benefits of Composition","order":2},{"id":"seed_9a2bf0377f4140145b310ec294d856d1","title":"When This Principle Doesn't Apply","order":3}]},{"id":"seed_e4e090e2eadc2591c0fbed46b19d00de","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Delegation Pattern — Flexible Object Collaboration","order":5,"contentType":"LEARNING","contentSlug":"delegation-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_38796ad8fc2d31a89ebf468826271618","title":"What Is Delegation?","order":0},{"id":"seed_add99eee330ca70312d207504d75208f","title":"Forwarding Requests to Contained Objects","order":1},{"id":"seed_e74c52933c1eb8dffbfc20051c53765f","title":"Delegation vs Inheritance","order":2},{"id":"seed_ca907f310533aed5f9888cf3165bc83e","title":"Implementing Delegation","order":3}]},{"id":"seed_9b2362b64a55d7fae18d22fe9ad7b405","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"When to Use Inheritance vs Composition — Making the Right Choice","order":6,"contentType":"LEARNING","contentSlug":"when-to-use-inheritance-vs-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_71335f779ff060b50748664349a944f0","title":"Decision Framework","order":0},{"id":"seed_501eb899233fd101ab12ce7076c21832","title":"Inheritance-Appropriate Scenarios","order":1},{"id":"seed_86d5e472b44d1dcb0af227a44097c686","title":"Composition-Appropriate Scenarios","order":2},{"id":"seed_a0640f9515058305c6a2b02420c491f0","title":"Hybrid Approaches","order":3}]},{"id":"seed_157e6272dfce32e59c5c821cdb1412f3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Refactoring from Inheritance to Composition","order":7,"contentType":"LEARNING","contentSlug":"refactoring-from-inheritance-to-composition","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_6fa54df4e0b4add5e83af0d1942425ab","title":"Identifying Refactoring Candidates","order":0},{"id":"seed_ca036b9eccfbaab42b654cf9740e4c9a","title":"Step-by-step Refactoring Process","order":1},{"id":"seed_4ee3b5504f4eaf1f57964d22ce08e687","title":"Maintaining Behavior During Refactoring","order":2},{"id":"seed_0e8b84ae29a5e9096170ae81ac74dd54","title":"Testing the Refactored Design","order":3}]},{"id":"seed_bb9fdaf79e516d8c2bcae8cfb4d8e191","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Design a Parking Lot System","order":8,"contentType":"LLD","contentSlug":"design-parking-lot","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_aa767c9e0b39089cba1d26c1caf3c8cd","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 9: Composition Vs Inheritance","sectionOrder":9,"title":"Design a Library Management System","order":9,"contentType":"LLD","contentSlug":"design-library-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_642acb350127ba73e8e2b2c93d70d8d6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"What Is SRP?","order":1,"contentType":"LEARNING","contentSlug":"what-is-srp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_3ebd88a095c0aaf8d44f4f83877f84b2","title":"Definition — A Class Should Have One Reason to Change","order":0},{"id":"seed_1b90dd8696b5fb113b016f6da7be0624","title":"Uncle Bob's Formulation","order":1},{"id":"seed_27a010638576122c2ad9d081be6d2752","title":"SRP as the Foundation of Good Design","order":2},{"id":"seed_1ad422e35c30b7851744a8865011d803","title":"Why SRP Matters for Maintainability","order":3}]},{"id":"seed_da8bfe459585ccdf2374cb7147c5c1b8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"What Does 'Responsibility' Really Mean?","order":2,"contentType":"LEARNING","contentSlug":"defining-responsibility","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_5bd1c0b37c342e12654766b005c666da","title":"What Constitutes a Responsibility","order":0},{"id":"seed_9c36454751be336c2fe57bcb2fa90554","title":"Actor-Based Responsibility Definition","order":1},{"id":"seed_d28c7415ea2df6e4167284d91ef68556","title":"Cohesion and Responsibility","order":2},{"id":"seed_8ddab2abe5e470287a22ca5c835a3535","title":"Common Responsibility Boundaries","order":3}]},{"id":"seed_9d0b3831054181d4a0c5f6f87f1bc2d9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Identifying SRP Violations","order":3,"contentType":"LEARNING","contentSlug":"identifying-srp-violations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_50a1c3da45ba85d5dc05f56b5698ddd6","title":"Signs of SRP Violation: Too Many Reasons to Change","order":0},{"id":"seed_b5e1419a5096dbea02f1fd560a9b4bf5","title":"Large Classes with Many Methods","order":1},{"id":"seed_a52ec8372dee9b1c19ca94b58e297df8","title":"Methods That Don't Use Most Class Fields","order":2},{"id":"seed_f688158d6608fbe565fef2bd6396e297","title":"God Classes and Feature Envy","order":3}]},{"id":"seed_a9ef89f46494ff96a73afe97953cae93","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Refactoring for Single Responsibility Principle","order":4,"contentType":"LEARNING","contentSlug":"refactoring-for-srp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_8f79ffb2a60e54f6f30c52074f1c645f","title":"Extracting Classes","order":0},{"id":"seed_f875d37f4c710233f07fe2fc9ac712ed","title":"Splitting Responsibilities","order":1},{"id":"seed_dd4e3efc25f1e93cd2819a3d2a96d0bb","title":"Maintaining Cohesion After Split","order":2},{"id":"seed_c4e160781275f999322711933cd514b9","title":"Step-by-Step SRP Refactoring","order":3}]},{"id":"seed_c7bedc6b619c7ee1c77f17f8e8358229","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"SRP at Different Levels","order":5,"contentType":"LEARNING","contentSlug":"srp-at-different-levels","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4835e5438b3ad6ddb9bbdf1d6ef1d832","title":"SRP for Classes — The Foundation of Responsibility","order":0},{"id":"seed_12c1502632e03914af702fdac5639f39","title":"SRP for Methods — Focused Functions","order":1},{"id":"seed_94d5feac64b79f32bb0bec359c6e6e6d","title":"SRP for Modules and Packages — Organizing the Codebase","order":2},{"id":"seed_174bc92b8c6dbf7e5d0b9aa9bf4379ad","title":"SRP at the Architecture Level — Services, Subsystems, and Boundaries","order":3}]},{"id":"seed_95bfe849f9ddcc6c0076426076969a2a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 10: Single Responsibility Principle","sectionOrder":10,"title":"Common SRP Misconceptions","order":6,"contentType":"LEARNING","contentSlug":"common-srp-misconceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ce57f5f22da5b0778af572c25b1155cd","title":"SRP Doesn't Mean One Method Per Class","order":0},{"id":"seed_03b9bee343e3a06b705db85bc3f15cdd","title":"SRP Doesn't Mean Tiny Classes Everywhere","order":1},{"id":"seed_7f15016067791681dc42810a4a1b0b3c","title":"Balancing SRP with Pragmatism","order":2},{"id":"seed_e191a0eb63d8135596639c2a60e4789d","title":"When \"Violations\" Are Acceptable","order":3}]},{"id":"seed_9415ae0a8779278d688db261c1c4109a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"What Is OCP?","order":1,"contentType":"LEARNING","contentSlug":"what-is-ocp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_61be7ee6826d19ac28d71209f36a5f41","title":"The Open/Closed Principle Defined","order":0},{"id":"seed_29fe834b22e6f885f029484103cf8bc8","title":"Bertrand Meyer's Original Formulation","order":1},{"id":"seed_09878a84e522a1c565f7ec08fa07fbf6","title":"Why Modification Is Risky","order":2},{"id":"seed_1495a3a4faf897eeca70b6965cf4c3a8","title":"Extension as Safe Evolution","order":3}]},{"id":"seed_a4b65bfd658b5c0a8f6f383f078a35c7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Open for Extension, Closed for Modification","order":2,"contentType":"LEARNING","contentSlug":"open-for-extension-closed-for-modification","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e4608229e31a9b565029dfec1379a9da","title":"What 'Open' Means — Understanding Extension Points","order":0},{"id":"seed_b5aae84e3ca483b81f4677f7f9b2bdf9","title":"What 'Closed' Means — The Fortress of Stability","order":1},{"id":"seed_71e3ba46b208fb731a158cf95ccf4c4d","title":"The Apparent Contradiction — Open AND Closed?","order":2},{"id":"seed_c8b6015d2d1f9f1c015612861bcfa42c","title":"How Abstraction Resolves It — The Elegant Solution","order":3}]},{"id":"seed_6dfa6d220a95a3b79a8e085ba1cf24b2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Achieving the Open/Closed Principle Through Abstraction","order":3,"contentType":"LEARNING","contentSlug":"achieving-ocp-through-abstraction","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_6b1afbdef8f6f639ac94ac3704bece4a","title":"Interfaces as Extension Points","order":0},{"id":"seed_5e02906bcae6c66dd513855d6f6e2e7c","title":"Abstract Classes for Variation","order":1},{"id":"seed_e3ae5b524681626a030124d3815ca13c","title":"Plugin Architectures","order":2},{"id":"seed_0f12e82b09c15277b7cd3c26a0fdc085","title":"Designing for Change","order":3}]},{"id":"seed_5e0af780582da8fb6ed30d16690c6d99","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Strategy Pattern and the Open/Closed Principle","order":4,"contentType":"LEARNING","contentSlug":"strategy-pattern-and-ocp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_07f34d427937294e2ae18eec6131c2d1","title":"Strategy as OCP Enabler","order":0},{"id":"seed_c7314cef5a7c68a837a93ae021faa028","title":"Injecting Behavior Variations","order":1},{"id":"seed_22ea04448f449aad608225d9857ad59e","title":"Adding New Strategies Without Modification","order":2},{"id":"seed_d516e7ad817f0a35a2d8824379d55783","title":"OCP Through Composition","order":3}]},{"id":"seed_3309e375d5681e638818d7c5f6231fed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"OCP Violations and Fixes","order":5,"contentType":"LEARNING","contentSlug":"ocp-violations-and-fixes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_dbaa89e618e445eb07ecdf5aff995436","title":"If-else Chains as OCP Violations","order":0},{"id":"seed_bca2563c0aa2fdb164d22fce7215d4fc","title":"Type Checking with instanceof","order":1},{"id":"seed_45f53c78db6cf3e8b5302bcdf27af40b","title":"Switch Statements on Type","order":2},{"id":"seed_954bf64ca77dc2e8aa77c1c06babefdc","title":"Refactoring to OCP-Compliant Design","order":3}]},{"id":"seed_e7c86d7eb27eb5bfd23eb4eddfa8683e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 11: Open Closed Principle","sectionOrder":11,"title":"Balancing OCP with Pragmatism","order":6,"contentType":"LEARNING","contentSlug":"balancing-ocp-with-pragmatism","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_a5f2fc1ce2798f6f20fd72d6cd7075aa","title":"Not Every Change is Foreseeable","order":0},{"id":"seed_7b2e5f2d43b076bbe7fff99fc2b5a1c5","title":"Cost of Over-Engineering","order":1},{"id":"seed_905041809e69f5372ad5734091394949","title":"Strategic Extension Points","order":2},{"id":"seed_ed01224c2d1e37e242bd05c32f09b343","title":"Iterative Application of OCP","order":3}]},{"id":"seed_149fbd04950a5006abe8ac5bfeed2fbf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"What Is LSP?","order":1,"contentType":"LEARNING","contentSlug":"what-is-lsp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_1729972eeace8a7c5ee97eb92b48f796","title":"Subclasses Must Be Substitutable for Base Classes","order":0},{"id":"seed_8a88ec0ea95891df1504e529ca80c5f8","title":"Barbara Liskov's Formulation","order":1},{"id":"seed_eae390dd794dda246b2c26751fb94ea0","title":"LSP as Behavioral Contract","order":2},{"id":"seed_0ecb649b256754c57e0d22eab16e6c40","title":"Why LSP Matters for Polymorphism","order":3}]},{"id":"seed_2c8136281afb042aff35d7238abf35ff","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Behavioral Subtyping: Beyond Syntax to Semantics","order":2,"contentType":"LEARNING","contentSlug":"behavioral-subtyping","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_265a6d83c3e3de15c349e3560bbc1281","title":"Syntactic vs Semantic Compatibility","order":0},{"id":"seed_9f1f4faacb1919abb3accf2f87bdcbfd","title":"Preserving Expected Behavior","order":1},{"id":"seed_82d87fe2074089fa175b60640b402534","title":"Client Expectations","order":2},{"id":"seed_f35b779cbe7cc84000b76ab1619050fb","title":"Contracts in Inheritance","order":3}]},{"id":"seed_12a824f2010a2a39bea1f374b86f4de7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"The Rectangle-Square Problem: The Canonical LSP Violation","order":3,"contentType":"LEARNING","contentSlug":"rectangle-square-problem","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_5cf6f39f2d286ce4ba012f03b9fcf3dd","title":"The Classic LSP Violation Example","order":0},{"id":"seed_244d230dc4a3ca9cc03d02b4d040ee33","title":"Why Square Extending Rectangle Breaks LSP","order":1},{"id":"seed_0eec48c9197f0827ad7d3a967bdfed6a","title":"Mathematical vs Behavioral Inheritance","order":2},{"id":"seed_f50981255ad120266ea33fba6d3a045d","title":"Alternative Designs","order":3}]},{"id":"seed_9c00729cf37512df24e500dbb9d6663d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Preconditions and Postconditions","order":4,"contentType":"LEARNING","contentSlug":"preconditions-and-postconditions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_95226632a41575715a51c52d81a103c7","title":"Preconditions — What Must Be True Before","order":0},{"id":"seed_b22744a211ddaa75d645d1bdbbba00d6","title":"Postconditions — What Must Be True After","order":1},{"id":"seed_440c6d814cce1469d0b694998571bf97","title":"Weakening vs Strengthening — The Intuitive Guide","order":2},{"id":"seed_2eb2dbe29057a0aef8c782b912b9fadd","title":"Contract Rules for LSP — The Complete Picture","order":3}]},{"id":"seed_5ecf1145636cf4fbb2c6ae6bebfd2878","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Invariants in Inheritance","order":5,"contentType":"LEARNING","contentSlug":"invariants-in-inheritance","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ac507b560b331c0b16de24efec026697","title":"Class Invariants - Always-True Conditions","order":0},{"id":"seed_42f91e8895588fc24a14e1cf62cc8fd5","title":"Preserving Invariants in Subclasses","order":1},{"id":"seed_3ead52fe97500c92ba0678138d90f15a","title":"Invariant Violations","order":2},{"id":"seed_1af4ef0008e2038b58639ef9647b61cf","title":"Designing for Invariant Safety","order":3}]},{"id":"seed_6b3aebf3a5f882aa99b028482211c61b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 12: Liskov Substitution Principle","sectionOrder":12,"title":"Detecting and Fixing LSP Violations","order":6,"contentType":"LEARNING","contentSlug":"detecting-fixing-lsp-violations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_58c1a24bc6ac531347c3f582d7ff57ad","title":"Type Checking in Client Code — The Symptom of LSP Violations","order":0},{"id":"seed_1527ae233e3f43bf949840774ddf2d1b","title":"Unexpected Exceptions from Subclasses — The Silent Contract Breakers","order":1},{"id":"seed_6189d52fe459d3859b861b294d051373","title":"Partial Implementations — The Incomplete Contract Fulfillment","order":2},{"id":"seed_fc3866ea6a260693a1ea41c17e9a19eb","title":"Refactoring Strategies for LSP — Systematic Approaches to Fixing Violations","order":3}]},{"id":"seed_2fdc2944580b8c7d569cc44342d8470c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"What Is ISP?","order":1,"contentType":"LEARNING","contentSlug":"what-is-isp","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_74d0373e3ac352219268a41cfd74b076","title":"Definition: Clients Shouldn't Depend on Methods They Don't Use","order":0},{"id":"seed_1034eb9fd61bbe5c0d36638f9a72fe98","title":"ISP and Interface Design","order":1},{"id":"seed_543f1d810a81840277c9d5a671f2dfb8","title":"Why Fat Interfaces Are Problematic","order":2},{"id":"seed_1cef694f8f1a6973dbddb7d99664f01b","title":"ISP for Decoupling","order":3}]},{"id":"seed_5ce00075edb0ab3defffddf46d6b83d8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"The Fat Interfaces Problem","order":2,"contentType":"LEARNING","contentSlug":"fat-interfaces-problem","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_67f1c9f9eb763698312b63072b018686","title":"What Is a Fat Interface","order":0},{"id":"seed_e573ab80a51eedcc3413c0914daef22f","title":"Unused Method Dependencies","order":1},{"id":"seed_e17c12dc21eb41c11db9dfdcf1879ffb","title":"Implementation Burden","order":2},{"id":"seed_55fca163c73bb6d8e98de89d0eacf254","title":"Change Propagation Issues","order":3}]},{"id":"seed_4e9482fc4232955821e2ffebbf8fc652","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Role-Based Interface Design","order":3,"contentType":"LEARNING","contentSlug":"role-based-interface-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_7f5250d2a6ed78ff18875a44b15a5487","title":"Interfaces Representing Roles","order":0},{"id":"seed_50229b123066d71f5fa5af4159d124cd","title":"Client-Specific Interfaces","order":1},{"id":"seed_8b18e3ad9f6021649e725cfa04e743f9","title":"Minimal Interface Principle","order":2},{"id":"seed_9ebad3e9c314225d16993eb0b800b065","title":"Role Discovery Process","order":3}]},{"id":"seed_6a26e140e0dac95832618bc3f197b70d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"Splitting Interfaces","order":4,"contentType":"LEARNING","contentSlug":"splitting-interfaces","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_5306affcd06f4425a69e0444c9495352","title":"Identifying Split Boundaries","order":0},{"id":"seed_021898b0b0a6e3dac9f93efab93b47ee","title":"Multiple Interface Implementation","order":1},{"id":"seed_e73424ff7d01b3ce50e93a3f3c043767","title":"Migration Strategies","order":2},{"id":"seed_72667278908f7584f358bc83a77e882f","title":"Backward Compatibility Considerations","order":3}]},{"id":"seed_0a8f7dd84dda2f1f32ddab2ab64e8f2e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"ISP and Dependency Management","order":5,"contentType":"LEARNING","contentSlug":"isp-and-dependency-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_a1f30413a66d05150d629425dcec957c","title":"Reducing Transitive Dependencies","order":0},{"id":"seed_c2faec1c29d78076f22855902a9d083b","title":"Interface-Based Decoupling","order":1},{"id":"seed_893e908a9b759979dfadddec29ecdc56","title":"ISP in Module Boundaries","order":2},{"id":"seed_e6e5e5ff38a50408be6049f66e99eeb0","title":"ISP in API Design","order":3}]},{"id":"seed_49a97270cce660bfa68f89286e3dd5c7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 13: Interface Segregation Principle","sectionOrder":13,"title":"ISP in Practice","order":6,"contentType":"LEARNING","contentSlug":"isp-in-practice","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_d2d0e432343fb0a595f25e7aa597132b","title":"Real-World ISP Examples","order":0},{"id":"seed_dad972721f86ec512819bd365ef765e8","title":"Common ISP Mistakes","order":1},{"id":"seed_834fddba7ada90bd96ea1915337cc3d0","title":"ISP Checklist","order":2},{"id":"seed_3f809c1ea8776074ce3164a7a627cd1b","title":"Balancing Granularity","order":3}]},{"id":"seed_1791bf72fa3546f779c23c8b748a2a5b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"What Is the Dependency Inversion Principle?","order":1,"contentType":"LEARNING","contentSlug":"what-is-dip","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_dc9d4ac493bebd5f1807d669b54e4ab7","title":"Definition — Depend on Abstractions, Not Concretions","order":0},{"id":"seed_87c3bbdb9d9e71d23c8b0534baf43c9a","title":"High-Level and Low-Level Modules","order":1},{"id":"seed_363546d4a4bfb86cc0d93291d394aa60","title":"Traditional vs Inverted Dependencies","order":2},{"id":"seed_5a280e544b782828ad6781fe4e7e20ca","title":"Why DIP Enables Flexibility","order":3}]},{"id":"seed_83a41e4dbe3bbc0a7484e67d8fe7d562","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"High-Level vs Low-Level Modules","order":2,"contentType":"LEARNING","contentSlug":"high-level-vs-low-level-modules","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_81a1605e3bbbea8d626a64f3420c5552","title":"High-Level Modules — Policy and Business Logic","order":0},{"id":"seed_8238a5b57d5ad5b817d63237013637d0","title":"Low-Level Modules — Implementation Details","order":1},{"id":"seed_8f6cef04c2a504066a474926ada31015","title":"Identifying Levels in Your Code","order":2},{"id":"seed_b12b643dcd5992e9e9a4592e6a45704c","title":"Protecting High-Level from Low-Level Changes","order":3}]},{"id":"seed_addfd929a8fe03e0f40a6413d91f14d8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Depending on Abstractions","order":3,"contentType":"LEARNING","contentSlug":"depending-on-abstractions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_3bef477e310b108cdbfebf8cbbc0f7c5","title":"Interfaces as Abstraction","order":0},{"id":"seed_37e95afe6824a4812314a4d57bfc1b21","title":"Ownership of Abstractions","order":1},{"id":"seed_ad8e840f87d906326244d179820e4248","title":"Abstractions at Boundaries","order":2},{"id":"seed_9db2d9676021cbd2532d932a5ee91262","title":"Stable Abstractions Principle","order":3}]},{"id":"seed_4f2678d8fb5cdba2b0bf1d17e8b49216","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Dependency Injection Fundamentals","order":4,"contentType":"LEARNING","contentSlug":"dependency-injection-fundamentals","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_0afadd38f3c6440146023dce8ff4b6ae","title":"What is Dependency Injection","order":0},{"id":"seed_942456ad23e7d4e502f205baffaf0a97","title":"Constructor Injection","order":1},{"id":"seed_5b72052f2e81fae874446b7f1f93ff6d","title":"Setter Injection","order":2},{"id":"seed_91579489865124b50b65c9d26e730bf5","title":"Interface Injection","order":3},{"id":"seed_ff52d2a5ae6b8f6077c39d370a13e62c","title":"Choosing the Right Injection Style","order":4}]},{"id":"seed_1ec0a952980acc719a9d85ab4798d269","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"Inversion of Control Containers","order":5,"contentType":"LEARNING","contentSlug":"ioc-containers","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_d26fbcdfaec83fc587322a0df32538cf","title":"What is an IoC Container","order":0},{"id":"seed_556dee11f5f79b338d249485306225bc","title":"Container Configuration","order":1},{"id":"seed_0c9de4732db41b4dba3e02bdbf41f5ff","title":"Automatic Dependency Resolution","order":2},{"id":"seed_112c146417c6c7a27ebcf6cdad991b3a","title":"Popular Frameworks Overview","order":3}]},{"id":"seed_0e3cb60181dfd928c3ad79f460f06aa9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 14: Dependency Inversion Principle","sectionOrder":14,"title":"DIP and Testability","order":6,"contentType":"LEARNING","contentSlug":"dip-and-testability","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_740ce6f9866a9c7189c438b0e2a79695","title":"Mock Injection Through DIP","order":0},{"id":"seed_4f229236ea9c0038309f3257ef200425","title":"Isolating Units for Testing","order":1},{"id":"seed_7a8066e52021ee5abab7962ad20eaa09","title":"Designing for Testability","order":2},{"id":"seed_70ff04bdba0d6c6fed2204792ae5c030","title":"DIP in Test Architecture","order":3}]},{"id":"seed_fc6a2358552f049549aef09b51569132","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"DRY — Don't Repeat Yourself","order":1,"contentType":"LEARNING","contentSlug":"dry-dont-repeat-yourself","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_a8e0fb40fc4b815914b77a10d316a0dd","title":"Definition and Rationale of DRY","order":0},{"id":"seed_685a5f8ec913b969bcb6041518127661","title":"Knowledge Duplication vs Code Duplication","order":1},{"id":"seed_4ee11d917134a4c29ab25aafc1495cc8","title":"DRY Violations and Fixes","order":2},{"id":"seed_1acf0725938dc3b4ef7656597dac7334","title":"When DRY Goes Too Far","order":3}]},{"id":"seed_0fb562d83598a8ccf83a92665e3ce628","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"KISS: Keep It Simple, Stupid","order":2,"contentType":"LEARNING","contentSlug":"kiss-keep-it-simple-stupid","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4e3a6c71ec7a402a8fbe0b2365b55fd3","title":"Simplicity as a Design Goal","order":0},{"id":"seed_c4cb6898b17bdbf628decac6448c1ec3","title":"Complexity Costs","order":1},{"id":"seed_9b008a17896c4536bd1cc8a4a652907b","title":"Simpler Alternatives","order":2},{"id":"seed_6ae413585c88ba1d2b1d7dbde3c83c0c","title":"When Simplicity Conflicts with Other Goals","order":3}]},{"id":"seed_7179a314876d1b8bdc6d2a8bc3a8b4fc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"YAGNI — You Aren't Gonna Need It","order":3,"contentType":"LEARNING","contentSlug":"yagni-you-arent-gonna-need-it","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_47075d47d4bd05da09d53758b37292c6","title":"Avoiding Speculative Features","order":0},{"id":"seed_caf58722fbe9730b05744d522076dea0","title":"Cost of Unused Code","order":1},{"id":"seed_01b4627f31daaf023d26ac6deb7666e6","title":"Iterative Design Approach","order":2},{"id":"seed_bfd6ec1b93a71a29cb912bfc1690f4ec","title":"Balancing YAGNI with Extensibility","order":3}]},{"id":"seed_61e01fef0c5b40af0f16e4759311708f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Law of Demeter","order":4,"contentType":"LEARNING","contentSlug":"law-of-demeter","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_9363d594302a878deb15e7d0f1a33598","title":"Definition — Talk Only to Friends","order":0},{"id":"seed_cf4cbe94d3f3fbd0a2d723eecd191146","title":"Reducing Coupling Through Demeter","order":1},{"id":"seed_408f5ffc2190725f51f4b3659d9cc0d1","title":"Method Chains and Demeter","order":2},{"id":"seed_29d492db01155ad128ee1085fbc91023","title":"Applying Demeter Appropriately","order":3}]},{"id":"seed_49e45ac569851fb42757e87f165a6e0f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"The Principle of Least Astonishment (POLA)","order":5,"contentType":"LEARNING","contentSlug":"principle-of-least-astonishment","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_67e32a8d490a79404d5a58ef535a7f24","title":"Design That Matches Expectations","order":0},{"id":"seed_125413a54c1cb0280f46283b3a4e6496","title":"Predictable Behavior","order":1},{"id":"seed_354eae71204c9f110d3f16ea945e16c8","title":"Naming and Astonishment","order":2},{"id":"seed_80ebd71b816a5a348c634bdadf7d663a","title":"API Design and Astonishment","order":3}]},{"id":"seed_4a6d82ed9d562c676090d9d490367c24","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Tell, Don't Ask Principle","order":6,"contentType":"LEARNING","contentSlug":"tell-dont-ask","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_55449ded1b8248c1f9eb34db120d75d1","title":"Commands Over Queries","order":0},{"id":"seed_0f974ff6cf54d6195668887578e1b6da","title":"Pushing Behavior to Data","order":1},{"id":"seed_c41b73a957515bd15bfac1922c7f2df7","title":"Tell, Don't Ask Examples","order":2},{"id":"seed_1d6ee1174e5934ebcc9cf1c1f9440de6","title":"When Asking Is Appropriate","order":3}]},{"id":"seed_76a369e882aff43b6ee5286a37fe7c7e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Separation of Concerns","order":7,"contentType":"LEARNING","contentSlug":"separation-of-concerns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_21d296f978f79f79b5695851819f12dd","title":"Identifying Concerns","order":0},{"id":"seed_275c37295285f84cf0f0aa29b9ac48e6","title":"Isolating Concerns","order":1},{"id":"seed_341f66aa32c8cbaf66926b0514ad732f","title":"Cross-Cutting Concerns","order":2},{"id":"seed_835298ae287a4c4dc915d09b3b90cd27","title":"Concern Separation in Architecture","order":3}]},{"id":"seed_631c145a428b60d482acab7a6b0428ac","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 15: Other Essential Design Principles","sectionOrder":15,"title":"Cohesion and Coupling","order":8,"contentType":"LEARNING","contentSlug":"cohesion-and-coupling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_b00e622593b78fbbbe470b593ea3a1ae","title":"High Cohesion — Things That Belong Together","order":0},{"id":"seed_83a32efe3212811d0ddf87eb8806e50a","title":"Low Coupling — Minimal Dependencies","order":1},{"id":"seed_d6dd0af800b501ae63a49f4fb1647f25","title":"Measuring Cohesion and Coupling","order":2},{"id":"seed_d04951f6aea036cb6649ac8080d1b156","title":"Trade-offs in Design","order":3}]},{"id":"seed_4b06b453f50a1fc71e389588b1305e52","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"What Are Design Patterns?","order":1,"contentType":"LEARNING","contentSlug":"what-are-design-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_74fe08eaf4766230de910704eda792ca","title":"Definition: Reusable Solutions to Common Problems","order":0},{"id":"seed_e56fab496c5f95b8f7cca0b901efbc70","title":"Patterns as Communication Tools","order":1},{"id":"seed_39a142dd5d22f40829b5325ecc3b73af","title":"Patterns as Design Vocabulary","order":2},{"id":"seed_1ca575106ba641aab7bf083d4e3cef26","title":"What Patterns Are NOT","order":3}]},{"id":"seed_67b6c8f2ab71b1e3120bfa635ffd01bf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"History and Origins: The Gang of Four","order":2,"contentType":"LEARNING","contentSlug":"history-and-origins","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_2653b68824a947c68d5f5300a8c4345b","title":"The Gang of Four Book","order":0},{"id":"seed_ec76972c21bcd4a2f8419961201ff5dc","title":"Original 23 Patterns","order":1},{"id":"seed_4a5ef5b642762a505954cc6d4890c02c","title":"Pattern Documentation Format","order":2},{"id":"seed_cc361ed717a9201552019e122ea5fde0","title":"Evolution of Patterns","order":3}]},{"id":"seed_3bca43a94769033672a65403ad0fafa6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Pattern Categories: Creational, Structural, Behavioral","order":3,"contentType":"LEARNING","contentSlug":"pattern-categories","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_a7a37047f198d3910c113ae83aae5468","title":"Creational Patterns — Object Creation","order":0},{"id":"seed_484c809897284d278e4686fdcefffed1","title":"Structural Patterns — Object Composition","order":1},{"id":"seed_786f2905e70eaf9b06469f614723ca9e","title":"Behavioral Patterns — Object Interaction","order":2},{"id":"seed_f1b728bc6f1a14752cb38b3b9791b0d3","title":"Categorization Purpose — Why the Taxonomy Matters","order":3}]},{"id":"seed_cd7b5b3149710a382b2113e8e30a906b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"When to Use Design Patterns","order":4,"contentType":"LEARNING","contentSlug":"when-to-use-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_71bb012cb0231134eddea82f1a1dfac0","title":"Pattern as Solution to Specific Problem","order":0},{"id":"seed_099bc866cc784c6ae59e89ca0cdff47d","title":"Problem-Pattern Matching","order":1},{"id":"seed_55f10364d97a0f46ea97cc0f491fa9c6","title":"Avoiding Premature Patterns","order":2},{"id":"seed_6f1111e070b931d5b630f13c69742d0f","title":"Refactoring to Patterns","order":3}]},{"id":"seed_8625d8f0e7e688a575e0ab49b100d4b9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Anti-Patterns and Pattern Abuse","order":5,"contentType":"LEARNING","contentSlug":"anti-patterns-and-pattern-abuse","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_36c982cde73e9fca21f1ce569d195b6d","title":"What Are Anti-Patterns?","order":0},{"id":"seed_db43c3a4b533b5420894045bbc027cee","title":"Over-Patterning","order":1},{"id":"seed_c1232b43d16610da2e8578008eecdd02","title":"Pattern for Pattern's Sake","order":2},{"id":"seed_efe39f1b01095d6b80816206f1b3c9f0","title":"Keeping It Simple","order":3}]},{"id":"seed_465d789c1fd1b3e7766da17d8ae20d38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 16: Introduction To Design Patterns","sectionOrder":16,"title":"Pattern Selection Framework","order":6,"contentType":"LEARNING","contentSlug":"pattern-selection-framework","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_5cda832d626b9a3a11671794c0bb2cd9","title":"Identifying the Problem","order":0},{"id":"seed_ad7fef6e3a7cc4f7528bfc8ed3fd746a","title":"Evaluating Pattern Fit","order":1},{"id":"seed_3f38fb26ab34f5ba11f8bf2016ea16ab","title":"Considering Alternatives","order":2},{"id":"seed_1513db1a72664c15f34335c8cb3a63a0","title":"Decision Checklist","order":3}]},{"id":"seed_31521a6ae118679015299be83d3f305f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Factory Method Pattern","order":1,"contentType":"LEARNING","contentSlug":"factory-method","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_1f31b357268a7eff73d7ec64db18821b","title":"Problem: Creating Objects Without Specifying Exact Class","order":0},{"id":"seed_ac138317a8e34ee2d14085ecc156ee17","title":"Solution: Define Interface for Creation","order":1},{"id":"seed_ce5ce5cb8413be0da6ac82fe56849109","title":"Participants and Structure","order":2},{"id":"seed_26ce2487999fda8e3ade3ee269232846","title":"Use Cases and Examples","order":3}]},{"id":"seed_37c63790d3dcf4acbbf94624f01f1769","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Abstract Factory Pattern","order":2,"contentType":"LEARNING","contentSlug":"abstract-factory-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_f3b3d568addf13e526b77b5b6af8b4dc","title":"Problem — Creating Families of Related Objects","order":0},{"id":"seed_b2b07868805d8039be9c1cdb7d5aa38d","title":"Solution — Abstract Factory Interface","order":1},{"id":"seed_9cef236d1b88eeca7eec687f743d1931","title":"Participants and Structure","order":2},{"id":"seed_e537f3adfd3548c1c632957ab23173d7","title":"Factory Method vs Abstract Factory","order":3}]},{"id":"seed_2584dcd2d5c64dbc9b90c3f0febd2438","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Builder Pattern","order":3,"contentType":"LEARNING","contentSlug":"builder-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4d9db8167c14b9d17e2ad5be74339fd2","title":"Problem: Constructing Complex Objects Step by Step","order":0},{"id":"seed_fd5fa9b24437985066daeacba38ef850","title":"Solution: Separate Construction from Representation","order":1},{"id":"seed_6a6fed308828080b2e33aa4df7f62234","title":"Fluent Builder Interface","order":2},{"id":"seed_5e7701b39ed8acd73b4c89dce5f4efb4","title":"Director Role (Optional)","order":3}]},{"id":"seed_d67bdb86430e087e0fba938024585543","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Prototype Pattern: Object Cloning for Efficient Creation","order":4,"contentType":"LEARNING","contentSlug":"prototype-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_0970e64c595fa8d538e9e2c5531fcd64","title":"Problem: Creating Objects by Copying Existing Ones","order":0},{"id":"seed_83eb629a9207a27d5b9cc6c407e4460b","title":"Solution: The Clone Method","order":1},{"id":"seed_1dc4b6bfb2600b823c83eb95c7a8fa12","title":"Shallow vs Deep Copy","order":2},{"id":"seed_47e720745b3453a7ae0e0d8abf5b95e3","title":"Registry of Prototypes","order":3}]},{"id":"seed_fcbc07e84e14f4b9ed6263b23222c5e0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Singleton Pattern","order":5,"contentType":"LEARNING","contentSlug":"singleton-pattern","description":null,"estimatedMins":50,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_5d5684c6cb5969310ace99df90ef3af3","title":"Problem — Exactly One Instance","order":0},{"id":"seed_3655521fbc2171e77989e04f74ec7657","title":"Solution — Private Constructor, Static Accessor","order":1},{"id":"seed_d4bc3007f9dae1fc8e418f41a474b428","title":"Singleton Implementation Challenges","order":2},{"id":"seed_e8ffda1d6b9762e382506b8bbce71c37","title":"Thread-Safe Singleton","order":3},{"id":"seed_1f0f4d1be8d94aff2237c7a3b9ce7cae","title":"Singleton Criticisms and Alternatives","order":4}]},{"id":"seed_c87eef2744d8a3b1951da6085714e871","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Object Pool Pattern — Recycling Resources for Performance","order":6,"contentType":"LEARNING","contentSlug":"object-pool-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_b09e73120074b0d2aba05b610c5d2ee8","title":"Problem — Expensive Object Creation","order":0},{"id":"seed_26eef6ec9f32de2f3e8aae29a956679d","title":"Solution — Reusable Object Pool","order":1},{"id":"seed_5f9bee046271d9cac245dc07ce33206c","title":"Pool Management","order":2},{"id":"seed_a6c7f71191cdf4bf3d19585e29d786ae","title":"Pool Size and Lifecycle","order":3}]},{"id":"seed_c9cd7c486f9a697a5ec9f274ee3829bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Choosing the Right Creational Pattern","order":7,"contentType":"LEARNING","contentSlug":"choosing-the-right-creational-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_88f294f5320aeefeefb95a097696ad06","title":"Pattern Comparison","order":0},{"id":"seed_17ee746516e8424468861c616988a9e9","title":"Decision Tree","order":1},{"id":"seed_ee422e291eddd902f033f33099799bb1","title":"Combining Patterns","order":2},{"id":"seed_2b8a76738934658bc2426af207c4160b","title":"Real-World Examples","order":3}]},{"id":"seed_85d14b5bf049691fd059f1fcd42d64b6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Design a Vending Machine","order":8,"contentType":"LLD","contentSlug":"design-vending-machine","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_5c292b371fc38f570dfc30cfc6cf73bc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 17: Creational Patterns","sectionOrder":17,"title":"Design a Coffee Vending Machine","order":9,"contentType":"LLD","contentSlug":"design-coffee-vending-machine","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_fc2ea3142f1aa3442a0fe3473b57d54c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Adapter Pattern — Bridging Incompatible Interfaces","order":1,"contentType":"LEARNING","contentSlug":"adapter-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_21c1f9df6d379a14bddb1599915defc6","title":"Problem — Incompatible Interfaces","order":0},{"id":"seed_214ea15fd689b7ea422b15ac199f930a","title":"Solution — Wrapper That Translates","order":1},{"id":"seed_72af182a008b396322011bd5c02ef914","title":"Class Adapter vs Object Adapter","order":2},{"id":"seed_0b3e950bc4d1865dac88a6aee37f709e","title":"Use Cases and Examples","order":3}]},{"id":"seed_a94f2581c470338713bb59bfb1d73ee5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Bridge Pattern","order":2,"contentType":"LEARNING","contentSlug":"bridge-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e788eae3fcff33623730d75e5814553f","title":"Problem — Abstraction Coupled to Implementation","order":0},{"id":"seed_2b818fdf286d0b83821e16df004a9d60","title":"Solution — Separate Abstraction and Implementation Hierarchies","order":1},{"id":"seed_c3748c4868259bfd793e6ee7157654dc","title":"Bridge vs Adapter — Understanding the Difference","order":2},{"id":"seed_67e77e9a0bd2506b764869368622d8bc","title":"Use Cases and Examples","order":3}]},{"id":"seed_ee8cab08395ba4f631c403c8c7e1fe66","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Composite Pattern","order":3,"contentType":"LEARNING","contentSlug":"composite-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ac95770b09785c3fdb568954089b333c","title":"Problem — Treating Individual and Composite Uniformly","order":0},{"id":"seed_746f8b427449359a67741f73c5e35493","title":"Solution — Tree Structure with Common Interface","order":1},{"id":"seed_b4b14482d66f129e87311664b012b963","title":"Component, Leaf, Composite — The Pattern Participants","order":2},{"id":"seed_cc6e3bcdf445fe587c617df8f76446a6","title":"Use Cases and Examples","order":3}]},{"id":"seed_2083bb0709af82face089b7a29c89c31","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Decorator Pattern","order":4,"contentType":"LEARNING","contentSlug":"decorator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ea9ec1351921f6b8f7d90baf2785b399","title":"Problem — Adding Behavior Dynamically","order":0},{"id":"seed_c67c5af73f2d10fcbbcbba780a0f5568","title":"Solution — Wrapping with Decorators","order":1},{"id":"seed_d8a7c3d56eb523a309de128a7129b778","title":"Decorator vs Inheritance","order":2},{"id":"seed_09d85a6e4a6b4ddfd61214347831a292","title":"Use Cases and Examples","order":3}]},{"id":"seed_ecfa3243624bcfe46a56d43f425c94dc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Facade Pattern: Simplifying Complex Subsystems","order":5,"contentType":"LEARNING","contentSlug":"facade-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_d0eed2f61865a0b3b73d136809a6c8b0","title":"Problem: Complex Subsystem Interface","order":0},{"id":"seed_c5b23a48c08ce008457e791e54aeafc4","title":"Solution: Simplified Unified Interface","order":1},{"id":"seed_77563eb5bbe453c308db0606e381c724","title":"Facade Design Considerations","order":2},{"id":"seed_718db90fafcc5a339eb1deea970aa6ed","title":"Use Cases and Examples","order":3}]},{"id":"seed_c6f8d1fdcf8e6e9875be363a9ea388d4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Flyweight Pattern: Efficient Object Sharing","order":6,"contentType":"LEARNING","contentSlug":"flyweight-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_8fd10141aa8d839667df9af827fdf8c7","title":"Problem: Large Number of Similar Objects","order":0},{"id":"seed_84fa2ae8415a349cb8e1c2540102204c","title":"Solution: Share Common State","order":1},{"id":"seed_23e5bdae851970268f39f266542e208b","title":"Intrinsic vs Extrinsic State","order":2},{"id":"seed_bffbba89e252f253d7c9781ab7226c05","title":"Use Cases and Examples","order":3}]},{"id":"seed_f9a059902a7c8164f5094b68a19b7774","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Proxy Pattern","order":7,"contentType":"LEARNING","contentSlug":"proxy-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_853a9d51f6c1d66b86fbf4375da26814","title":"Problem — Controlling Access to Object","order":0},{"id":"seed_3d7c7ae9605ad1a8077e75c275c109c3","title":"Solution — Surrogate with Same Interface","order":1},{"id":"seed_0fee2d24ab5e92fafe35a62563cfd535","title":"Proxy Types — Virtual, Protection, Remote","order":2},{"id":"seed_11505c63af4c34909a615dbb986c415f","title":"Use Cases and Examples","order":3}]},{"id":"seed_b301d5919f0a5067a0776f4f94d1874d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 18: Structural Patterns","sectionOrder":18,"title":"Choosing the Right Structural Pattern","order":8,"contentType":"LEARNING","contentSlug":"choosing-structural-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_faa1c27ba256ea825addda812c8f78a7","title":"Pattern Comparison — A Comprehensive Analysis","order":0},{"id":"seed_294f39ded082e62b8b4423a9a7bb4193","title":"Decision Tree — A Systematic Framework for Pattern Selection","order":1},{"id":"seed_2cfd87a3ec48c25964dc027039af9214","title":"Combining Patterns — Synergistic Pattern Composition","order":2},{"id":"seed_a8899bf52bcdf8067f960d86d9bea22c","title":"Real-World Examples — Structural Patterns in Production Systems","order":3}]},{"id":"seed_70632263cf973b25e4fde8517ca67c71","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Strategy Pattern","order":1,"contentType":"LEARNING","contentSlug":"strategy-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_b4a1890b533a584a57b3b3ee1e5dface","title":"Problem: Interchangeable Algorithms","order":0},{"id":"seed_999d1b4167ea4494d71874369bd14d00","title":"Solution: Encapsulate Algorithms in Classes","order":1},{"id":"seed_e10325ae50caa50ccfa55da244355d54","title":"Strategy Selection","order":2},{"id":"seed_93852b40240b565f507cc804f237e64d","title":"Use Cases and Examples","order":3}]},{"id":"seed_646cb1710a949e774ecd419bc7853aed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Observer Pattern","order":2,"contentType":"LEARNING","contentSlug":"observer-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_40116bfffc949a4e3a8d00b58e682401","title":"Problem: One-to-Many Dependency","order":0},{"id":"seed_792350d9de29c6652f06502836f6702d","title":"Solution: Publish-Subscribe Mechanism","order":1},{"id":"seed_e2513012d4f64fc82bf30148727e9b63","title":"Subject and Observers","order":2},{"id":"seed_c8deccb59fa748fbb913af86fbe8a27f","title":"Push vs Pull Models","order":3}]},{"id":"seed_dc4f30fe1564a0e10ec0fb62f640ac65","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Command Pattern: Encapsulating Requests as Objects","order":3,"contentType":"LEARNING","contentSlug":"command-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_508b1df6d09746ca8abf9cb4b08f82a5","title":"Problem: Encapsulating Requests as Objects","order":0},{"id":"seed_473794dea495093b642c9040c77fe443","title":"Solution: Command Objects with Execute","order":1},{"id":"seed_e00bdbd43607344a33a4476be0a1b3da","title":"Undo/Redo Support","order":2},{"id":"seed_86e65e57235868bc0e5d48ddda27a811","title":"Command Queues and Logging","order":3}]},{"id":"seed_75df3a4559b3bd3f5f249edc874f6206","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"State Pattern","order":4,"contentType":"LEARNING","contentSlug":"state-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_aa6d8fff5e2879154e1dee4047954596","title":"Problem: Behavior Depends on State","order":0},{"id":"seed_a558c13c9fda86dbc0f6cd329b5d5f58","title":"Solution: State Objects with Behavior","order":1},{"id":"seed_8fc16a42bc16a44cd8933a7a495910b1","title":"State Transitions","order":2},{"id":"seed_66b594d32b9a85a65782f504dc1fb09e","title":"State vs Strategy","order":3}]},{"id":"seed_75cc9337a9b812b9e549e2d263319fc2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Template Method Pattern","order":5,"contentType":"LEARNING","contentSlug":"template-method-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_fca4b1f2efb74caa266ba8a7f0e21e73","title":"Problem: Algorithm with Varying Steps","order":0},{"id":"seed_deab68314fd544b8c48c0fc2061ac6c9","title":"Solution: Abstract Class with Hook Methods","order":1},{"id":"seed_5e9537772a3d80768e9bb6f1a631b6be","title":"The Hollywood Principle","order":2},{"id":"seed_52adc2a7d451d953b850922f18e9ceb3","title":"Use Cases and Examples","order":3}]},{"id":"seed_e3678090f7b3725a84789e969173868b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Iterator Pattern: Uniform Collection Traversal","order":6,"contentType":"LEARNING","contentSlug":"iterator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_8a7fa2253a1d651f2df0e67eb993c7a3","title":"Problem: Traversing Collections Uniformly","order":0},{"id":"seed_d4d56a80b49588081e8d37899b6c9149","title":"Solution: The Iterator Interface","order":1},{"id":"seed_eed4f7614c7239033997ee3db07c255f","title":"Internal vs External Iterators","order":2},{"id":"seed_d1935320fd38bc1efb3d2661e4c25575","title":"Use Cases and Examples","order":3}]},{"id":"seed_473883e14fcdd0c4ce8b55c74802d1fd","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Design a Logging Framework","order":7,"contentType":"LLD","contentSlug":"design-logging-framework","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_37f10842432577556610464660ebf0f1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Design a Traffic Signal Control System","order":8,"contentType":"LLD","contentSlug":"design-traffic-signal","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_67259235515730819246c728dd6fed2a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 19: Behavioral Patterns Part 1","sectionOrder":19,"title":"Design a Task Management System","order":9,"contentType":"LLD","contentSlug":"design-task-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_be8abee8a52cd2646b4092c8cee67783","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Chain of Responsibility Pattern","order":1,"contentType":"LEARNING","contentSlug":"chain-of-responsibility-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_61bd64405fff4a791a1b9c676a881486","title":"Problem: Multiple Handlers for a Request","order":0},{"id":"seed_0a442537d170a84894a96eb297d689aa","title":"Solution: Chain of Handler Objects","order":1},{"id":"seed_25d6723070f9f0f954fa2d0252c93199","title":"Chain Construction","order":2},{"id":"seed_8426dd47884d56a5b70acb7c83ad094c","title":"Use Cases and Examples","order":3}]},{"id":"seed_9bc98cba340e6bd3c283cb2c5350626c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Mediator Pattern: Centralizing Complex Interactions","order":2,"contentType":"LEARNING","contentSlug":"mediator-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_6d02d303e1c0b38dfc4b74b01a15c03b","title":"Problem: Complex Object Interactions","order":0},{"id":"seed_cc439dbb34872885fd57a72b2dfec833","title":"Solution: Centralized Mediator","order":1},{"id":"seed_caa824e09b46b902b56ece04035b5a94","title":"Mediator vs Facade: Understanding the Distinction","order":2},{"id":"seed_5da73e7108221f0049e5bcdc5dde1565","title":"Use Cases and Real-World Examples","order":3}]},{"id":"seed_fce610c28bd52a824515914ba0e3b716","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Memento Pattern: State Preservation and Recovery","order":3,"contentType":"LEARNING","contentSlug":"memento-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4a8a9364bf0dfd41044782b125fc11b5","title":"Problem: Capturing and Restoring State","order":0},{"id":"seed_9bce6118d43097b9ec9608bf32840ddf","title":"Solution: Memento Objects","order":1},{"id":"seed_3f4b388c8c092c6cfb3abc0460563843","title":"Originator, Memento, Caretaker","order":2},{"id":"seed_da20d6509fa6fb40413008d203cede00","title":"Use Cases and Examples","order":3}]},{"id":"seed_d4666190c22b4bd8547cd01477c43183","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Visitor Pattern: Adding Operations Without Modifying Classes","order":4,"contentType":"LEARNING","contentSlug":"visitor-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_10ec32ccbccf6ca87e72d2fd14ac6245","title":"Problem: Adding Operations Without Modifying Classes","order":0},{"id":"seed_563fc2705fce085ff7d103c61b359d92","title":"Solution: Visitor with Double Dispatch","order":1},{"id":"seed_0bc6e7b55022f6ab773502c92fe15451","title":"When to Use Visitor","order":2},{"id":"seed_ea4116f4509ea6c0b0d5212a67db8595","title":"Use Cases and Examples","order":3}]},{"id":"seed_12d0863cd076b537b01eea9a7a9487e4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Interpreter Pattern (Overview)","order":5,"contentType":"LEARNING","contentSlug":"interpreter-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ddb11f8158a71e9d8d757fbedb109b33","title":"Problem: Interpreting a Language","order":0},{"id":"seed_366d57bdf1145da96be5fc1d9546fd3f","title":"Solution: Grammar Representation as Classes","order":1},{"id":"seed_bdcdbdf715a47f35b8bce6eb9f98fb8e","title":"When to Use the Interpreter Pattern","order":2},{"id":"seed_762ec90438b70707d0ae8253775f72ef","title":"Alternatives to the Interpreter Pattern","order":3}]},{"id":"seed_ae2380472c4e2f698a7e70c46cad2a7c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Null Object Pattern: Eliminating Null Reference Chaos","order":6,"contentType":"LEARNING","contentSlug":"null-object-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_1e1c5fe68402026e89e7d2eba1f0c6f1","title":"Problem: Handling Null References","order":0},{"id":"seed_1456a59feef80bb93d4a242d42c64c2a","title":"Solution: Null Object with No-Op Behavior","order":1},{"id":"seed_6f12886ba3b119243ec5f70320baaa74","title":"Benefits and Trade-offs","order":2},{"id":"seed_fb6ff9fbd2af0e13eafa977186a95c75","title":"Use Cases and Examples","order":3}]},{"id":"seed_494dbe0016c35cd34196f1246971049f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Choosing the Right Behavioral Pattern","order":7,"contentType":"LEARNING","contentSlug":"choosing-behavioral-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ed8eccc6f157e2928128d240e10f017f","title":"Behavioral Pattern Comparison","order":0},{"id":"seed_6d6cdd0448e6c22c24cb52c445f282f1","title":"Decision Tree for Behavioral Pattern Selection","order":1},{"id":"seed_221f823187793cc0759613de70de021f","title":"Combining Behavioral Patterns","order":2},{"id":"seed_b94a1e0e85b8777cd16529fff2ec4254","title":"Real-World Examples: Behavioral Patterns in Production Systems","order":3}]},{"id":"seed_4ad0b9fa09ab13e5f61ca35576a41c6c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Design an ATM","order":8,"contentType":"LLD","contentSlug":"design-atm","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_072c78a8756816c412ea35ba8a68ea64","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Design Tic Tac Toe Game","order":9,"contentType":"LLD","contentSlug":"design-tic-tac-toe","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_a13ed02b9160f2e3181b2f200aa66a0e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 20: Behavioral Patterns Part 2","sectionOrder":20,"title":"Design a Snake and Ladder Game","order":10,"contentType":"LLD","contentSlug":"design-snake-and-ladder","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_b514626cfb1a543278fe504ad0fa7d7c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Dependency Injection Revisited","order":1,"contentType":"LEARNING","contentSlug":"dependency-injection-revisited","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_7caf65fef91828a5be92d2f317efd7a7","title":"Recap of Dependency Injection from DIP Chapter","order":0},{"id":"seed_5ca7b7b7020d8dddb75ee635a1293efc","title":"DI as a Technique vs DI as a Principle","order":1},{"id":"seed_4e60a8ada5b0cc6e054cdd1014fd8844","title":"Benefits of DI: Flexibility, Testability, Maintainability","order":2},{"id":"seed_cdcac1a2286377ef35bea6d60cf27199","title":"DI Scope and Boundaries","order":3}]},{"id":"seed_9a1e614f6d9d85a73165cd9b03f8836d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Constructor Injection: The Preferred DI Technique","order":2,"contentType":"LEARNING","contentSlug":"constructor-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_f8cf0df9e488c3b564f96262c0626ef1","title":"Passing Dependencies Through Constructor","order":0},{"id":"seed_df343ad49976e450fe07df5ee22c196f","title":"Mandatory Dependencies Pattern","order":1},{"id":"seed_ac8bbfca95da4d0ca7e5875d301c832e","title":"Immutable Dependencies","order":2},{"id":"seed_37c2eefc59da1408e8764435655781b7","title":"Constructor Injection Best Practices","order":3}]},{"id":"seed_98151bb4f7025da1c313c7b6d19dea45","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Setter Injection: Providing Dependencies Through Mutator Methods","order":3,"contentType":"LEARNING","contentSlug":"setter-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_fc127e48854e47f02651296e4e4b641e","title":"Passing Dependencies Through Setters","order":0},{"id":"seed_e855033d41084f189de359bef9420784","title":"Optional Dependencies Pattern","order":1},{"id":"seed_7164f31564e4c58884af2b2e72636c5a","title":"Setter Injection Trade-offs","order":2},{"id":"seed_811b13d7db9ded73ce1612c77cf19d99","title":"When to Use Setter Injection","order":3}]},{"id":"seed_04231ad363d038112c54c0f119c05a46","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Interface Injection","order":4,"contentType":"LEARNING","contentSlug":"interface-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_6281cf1e1be10ed933a7d2e1ee953256","title":"Dependency Provides Injector Interface","order":0},{"id":"seed_6c39906e5b175bfbda7bbf9d7cbb72d2","title":"Implementation Provides Dependency","order":1},{"id":"seed_5bf9701024494aeda011f55b772d9b40","title":"Interface Injection Use Cases","order":2},{"id":"seed_878e7834955e05546f9bc48142e46621","title":"Comparison with Other Injection Types","order":3}]},{"id":"seed_19d079c1f928d92606c1751a1562a53a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Service Locator vs Dependency Injection","order":5,"contentType":"LEARNING","contentSlug":"service-locator-vs-dependency-injection","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_dce6f61c8bda936fa40bde4683622659","title":"Service Locator Pattern","order":0},{"id":"seed_1a2abf58041e673ebdeef8068821408b","title":"Why Service Locator Is Often an Anti-Pattern","order":1},{"id":"seed_7783f83aa9de332e0d2914617afc46d9","title":"Hidden Dependencies Problem","order":2},{"id":"seed_4462d2e5d0922c4e244becf55fb10295","title":"When Service Locator Is Acceptable","order":3}]},{"id":"seed_c3dd4b4411e2db18ab1743670a962a05","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"IoC Container Deep Dive","order":6,"contentType":"LEARNING","contentSlug":"ioc-container-deep-dive","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_38eb504548f1868d3f1cae106694ade3","title":"Container Configuration Approaches","order":0},{"id":"seed_50b84fdf51fd09563f740416307d1e04","title":"XML vs Code vs Attribute Configuration","order":1},{"id":"seed_79d23db1666652b8799f5f9bb9c3329c","title":"Automatic Registration Patterns","order":2},{"id":"seed_ae94f5e79200c85d877cb28c88672582","title":"Container Best Practices","order":3}]},{"id":"seed_7ced201633a0e7cef8e78096bfe4ac79","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"Lifetime Management in Dependency Injection","order":7,"contentType":"LEARNING","contentSlug":"lifetime-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_b969420645391f59db5bdecc1a1684f8","title":"Transient Lifetime — New Instance Each Time","order":0},{"id":"seed_18a02616c34040bc58e003990f13bbfe","title":"Scoped Lifetime — Instance Per Scope","order":1},{"id":"seed_ae89dcc6fd254d389ea94e8fb246eca8","title":"Singleton Lifetime — Single Instance","order":2},{"id":"seed_24fe0ed34709b5910c9b7d0584396115","title":"Choosing Appropriate Lifetimes","order":3}]},{"id":"seed_82f189a2b188e10512b5e94ee82e4ca5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 21: Dependency Injection Deep Dive","sectionOrder":21,"title":"DI Anti-Patterns and Best Practices","order":8,"contentType":"LEARNING","contentSlug":"di-anti-patterns-and-best-practices","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_99267a336a647e58c6a37abcd8cf28d7","title":"Constructor Over-Injection","order":0},{"id":"seed_b4c703d71f82552b1e8f96a270eba64d","title":"Circular Dependencies","order":1},{"id":"seed_f1e3c0b9937c662d2e842e572a4d7e47","title":"Captive Dependencies","order":2},{"id":"seed_ece4564a01522961a1ecb5f55c5f8aa0","title":"DI Best Practices Checklist","order":3}]},{"id":"seed_8cf35d216a3dbd388c9ef97ee2b7c846","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Why Concurrency Matters","order":1,"contentType":"LEARNING","contentSlug":"why-concurrency-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_8ab6330d0f4815b2ee09ae02402498a7","title":"Single-threaded Limitations","order":0},{"id":"seed_dc161649a7d90749c03101395bd557c8","title":"Responsiveness and Throughput","order":1},{"id":"seed_4cdb4cae371e9853253cc2b15654baa4","title":"Multi-core Utilization","order":2},{"id":"seed_01353b3d2839dc0dfec26528713067bd","title":"Concurrency in Modern Applications","order":3}]},{"id":"seed_d1423b163211de48afa68240946de736","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Threads and Processes","order":2,"contentType":"LEARNING","contentSlug":"threads-and-processes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4489d8b2eaa88e3fde9c538d9824fabd","title":"Process: The Independent Execution Environment","order":0},{"id":"seed_88cf5e13e714fb62db6a1ac465df657d","title":"Thread: The Lightweight Execution Unit","order":1},{"id":"seed_8256eaa801d737d80b16d6b01b732732","title":"Thread Lifecycle","order":2},{"id":"seed_a5c973db73c706f92d11734323ef479d","title":"Creating and Managing Threads","order":3}]},{"id":"seed_61cc9efb445be26d5fabe36bcd3e40b6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Thread Safety","order":3,"contentType":"LEARNING","contentSlug":"thread-safety","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_55439ec1a46e5767f186894b58b18b77","title":"What is Thread Safety","order":0},{"id":"seed_b39a7e4a7e39efcfdfdd2f23e8e73e99","title":"Shared Mutable State Problems","order":1},{"id":"seed_9cc74c2663ec2ad176faa2a775b5ac90","title":"Race Conditions","order":2},{"id":"seed_dcd51744fcedeb44bf9c7f9bf5b27c17","title":"Designing for Thread Safety","order":3}]},{"id":"seed_27aa7f16765859c9226c842360339c73","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Synchronization Primitives: Coordinating Concurrent Access","order":4,"contentType":"LEARNING","contentSlug":"synchronization-primitives","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_372ef74a61ca7ce0ae866fe4b6303fbb","title":"Mutex and Locks: Ensuring Exclusive Access","order":0},{"id":"seed_949dd34b89c2d94539508e40d2e8e17a","title":"Semaphores: Counting-Based Synchronization","order":1},{"id":"seed_e05b44e3b10370ec1512d2ab01bb236e","title":"Monitors: Structured Concurrency Coordination","order":2},{"id":"seed_5afa8842e7b0b6e578dc1642030afb9f","title":"Choosing Synchronization Mechanisms","order":3}]},{"id":"seed_d22f93b8277eb4c8b5330e74a2de02b0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Deadlocks and Prevention","order":5,"contentType":"LEARNING","contentSlug":"deadlocks-and-prevention","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_9b1c8c508c801a7882d137125d8ec297","title":"What is a Deadlock","order":0},{"id":"seed_acddf1b91c848f39aa3d6c79b5cd3db1","title":"Deadlock Conditions (The Coffman Conditions)","order":1},{"id":"seed_f0f3dcdea8d88e9483dcb57996e620e2","title":"Prevention Strategies","order":2},{"id":"seed_2ecec0a365460ecc372b4e955ae18fbb","title":"Detection and Recovery","order":3}]},{"id":"seed_c35af1bd0829845a161c5c5cb6bd3e11","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Atomic Operations: The Indivisible Units of Concurrency","order":6,"contentType":"LEARNING","contentSlug":"atomic-operations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_5c74ea27bd2b3c04ea03ff23d7850b01","title":"What Are Atomic Operations","order":0},{"id":"seed_6b44ab7fa244a1da8f8941404d8acba8","title":"Atomic Primitives","order":1},{"id":"seed_e9fa4c30c8b29a552e762c93c35c9a29","title":"Compare-and-Swap (CAS)","order":2},{"id":"seed_9b4eb9ae21d6f49edc6cafc939c329b6","title":"Lock-Free Programming Basics","order":3}]},{"id":"seed_09854d3be0a50ba2093a475a266673ca","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Design Concurrent HashMap","order":7,"contentType":"LLD","contentSlug":"design-concurrent-hashmap","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_43e83cf907a6d96788354a14edd54849","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 22: Concurrency Fundamentals","sectionOrder":22,"title":"Design Multi-threaded Merge Sort","order":8,"contentType":"LLD","contentSlug":"design-multithreaded-merge-sort","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_37ea72e10a41e6b6aa877126af078a04","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Producer-Consumer Pattern","order":1,"contentType":"LEARNING","contentSlug":"producer-consumer-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_d46d4da586632cfa80ddc6a21b327062","title":"Problem: Coordinating Producers and Consumers","order":0},{"id":"seed_aa33783934d088a077b0dcb3b0c8c39a","title":"Solution: Bounded Buffer with Synchronization","order":1},{"id":"seed_1b2ab7a29c0984d887029deca7a1d583","title":"Implementation Strategies","order":2},{"id":"seed_7b53321dc415252674cfcbb453af33bc","title":"Use Cases and Examples","order":3}]},{"id":"seed_64280f44c445925c5fc9b746d05d71e8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Thread Pool Pattern","order":2,"contentType":"LEARNING","contentSlug":"thread-pool-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_58753e7ad2c9741ddf4cfd7b2ab57d16","title":"Problem: Expensive Thread Creation","order":0},{"id":"seed_c0e4d5d900b352df7cf41201e4afd80e","title":"Solution: Pool of Reusable Threads","order":1},{"id":"seed_b47bf69841dcbb4fd2b09a3bcdca8f08","title":"Pool Sizing Considerations","order":2},{"id":"seed_45998715e3451e6ff398f0f0b82190a1","title":"Thread Pool in Practice","order":3}]},{"id":"seed_185a4364516655a64d39728fdcd18385","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Read-Write Lock Pattern","order":3,"contentType":"LEARNING","contentSlug":"read-write-lock-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_8aa671d118fa0f42bbe5b0c2c086d67f","title":"Problem: Multiple Readers, Single Writer","order":0},{"id":"seed_14af92422f5b9571dd2dc1ffe8c98585","title":"Solution: Read-Write Lock","order":1},{"id":"seed_bad54748fb73674dde88df02e1e68d7f","title":"Reader Preference vs Writer Preference","order":2},{"id":"seed_df8061045226e568b0e6c0feea70e531","title":"Use Cases and Examples","order":3}]},{"id":"seed_82c2701d283cc74f9716a92777746e49","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Future and Promise Pattern","order":4,"contentType":"LEARNING","contentSlug":"future-promise-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_951d224b2fee0c825104ca858b626bc8","title":"Problem: Asynchronous Result Handling","order":0},{"id":"seed_84d37b770ea29701cff7ef308334b60a","title":"Solution: Future/Promise Abstraction","order":1},{"id":"seed_e4072ada418621bc7209fd1ad651e4d2","title":"Composing Futures","order":2},{"id":"seed_909576ba9415d49849b6ea3f7c1f8209","title":"Error Handling with Futures","order":3}]},{"id":"seed_ac1a1c58001d5fc8b2ed7e84bd276221","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Double-Checked Locking Pattern","order":5,"contentType":"LEARNING","contentSlug":"double-checked-locking","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_3a517144641bc3bf6d28848a32c7c7b6","title":"Problem: Lazy Initialization in Concurrent Context","order":0},{"id":"seed_d7b4d1af848273c62932cf55295a338f","title":"Solution: Double-Checked Locking Pattern","order":1},{"id":"seed_2d7d6d96e4e6a7574b4dfa5a29d412c5","title":"Memory Model Considerations","order":2},{"id":"seed_c7d2c56a2eff262e51461e7aaae52431","title":"Safe Implementation Strategies","order":3}]},{"id":"seed_8173ee638491556066a373ae80c7d07a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Immutable Objects for Concurrency","order":6,"contentType":"LEARNING","contentSlug":"immutable-objects-for-concurrency","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4b3c08053469452c0646ddbada06a91d","title":"Immutability Recap","order":0},{"id":"seed_0703a4143741cb113de074ed5c3da51e","title":"Thread Safety Through Immutability","order":1},{"id":"seed_41b9e785a4693187cab322bef5689169","title":"Designing Immutable Concurrent Objects","order":2},{"id":"seed_65326ab1a693ace4c7bab4f4741bfb0a","title":"Immutable Collections","order":3}]},{"id":"seed_70367bbd38860adf1d607c3e50d5904d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Active Object Pattern","order":7,"contentType":"LEARNING","contentSlug":"active-object-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e93cd33074c6062dd5224f2da45354e5","title":"Problem: Decoupling Method Execution from Invocation","order":0},{"id":"seed_d36205bd167055ea042b805e77de38c9","title":"Solution: Active Object with Command Queue","order":1},{"id":"seed_5165cbe790941a2522b224a9a97c1b81","title":"Scheduler and Proxy: Advanced Patterns","order":2},{"id":"seed_b02f166829bf36b59abab489e3d77fbe","title":"Use Cases and Examples","order":3}]},{"id":"seed_80c77beb1977cf6d475ed94780b32e67","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Design Thread-Safe Blocking Queue","order":8,"contentType":"LLD","contentSlug":"design-blocking-queue","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_16105ef64dcb05107f32c9b88485f3a5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 23: Concurrency Patterns","sectionOrder":23,"title":"Design an Elevator System","order":9,"contentType":"LLD","contentSlug":"design-elevator-system","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_2bd3cfba0e7efdc56d467d2d99c2c422","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Introduction to Domain-Driven Design","order":1,"contentType":"LEARNING","contentSlug":"introduction-to-ddd","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_83fffa16687c5ef560a9a61591075310","title":"What is Domain-Driven Design","order":0},{"id":"seed_882473761d469b30794adfaa2740e33e","title":"Strategic vs Tactical DDD","order":1},{"id":"seed_4d64365852269fe231d0eea2a26d816d","title":"Ubiquitous Language","order":2},{"id":"seed_2e0535197c7f86714066fcf15a5e490e","title":"When DDD is Appropriate","order":3}]},{"id":"seed_22433df8915d434869882c61cb90adaa","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Entities in Domain-Driven Design","order":2,"contentType":"LEARNING","contentSlug":"entities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e964df082cd63d78fdc50e3bebabe55a","title":"What is an Entity","order":0},{"id":"seed_351b035625d30184162b9dad1b694624","title":"Identity vs Equality","order":1},{"id":"seed_af79d2dfa481c76e5fab53fe23b1502f","title":"Entity Design Guidelines","order":2},{"id":"seed_2bf9a6576df79a099f7964005c6d3177","title":"Entity Lifecycle","order":3}]},{"id":"seed_5705fb8dc1875652a4884ff128bf57f3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Value Objects in Domain-Driven Design","order":3,"contentType":"LEARNING","contentSlug":"ddd-value-objects","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_7042e5685332f2a1e4eb1b3ac1d70552","title":"What is a Value Object","order":0},{"id":"seed_6bc7177051cf0600b2f9fc9d6504ca20","title":"Immutability and Equality","order":1},{"id":"seed_e41c19ce67485bfaad2ffd1e69f4239c","title":"Value Object Design","order":2},{"id":"seed_53170260af2fbc82d5da11cd36889a24","title":"When to Use Value Objects","order":3}]},{"id":"seed_46b012310328e6b9eff4307e9f45b037","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Aggregates: Modeling Consistency Boundaries","order":4,"contentType":"LEARNING","contentSlug":"ddd/aggregates","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_3148e709667fd40fb2ea5d2fedefbf4f","title":"What is an Aggregate","order":0},{"id":"seed_726524a7d3c9fd7da64b8268dd7a3e72","title":"Aggregate Root","order":1},{"id":"seed_ab5718a0914db62bb0b8a99dc07142b0","title":"Consistency Boundaries","order":2},{"id":"seed_67fabcb0b7542b07a84fa5fbabf40bc5","title":"Aggregate Design Rules","order":3}]},{"id":"seed_74503f636a680ff917bda14b7396a9ac","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Repositories","order":5,"contentType":"LEARNING","contentSlug":"ddd-repositories","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_dfb5742e4d79d8ff4e91b020361f1202","title":"What is a Repository","order":0},{"id":"seed_3d92c36dee6c3ae8e5e92c58968639e3","title":"Repository as Collection Abstraction","order":1},{"id":"seed_f3c37f1cba1652eb096be789065d7991","title":"Repository Interface Design","order":2},{"id":"seed_97f32bb34fffb138e0afc666e460d7b6","title":"Repository Implementation Considerations","order":3}]},{"id":"seed_0e4408f53c5f89c5597031c848a8cce8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Domain Events","order":6,"contentType":"LEARNING","contentSlug":"lld-domain-driven-design-domain-events","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_9fb9f77508195c2223956f24429b4ad6","title":"What Are Domain Events","order":0},{"id":"seed_ba69eae0a6e358e001f7d012b1e84a1b","title":"Event Naming and Structure","order":1},{"id":"seed_8cd264c12d8f618e9fa890f90276511f","title":"Raising and Handling Events","order":2},{"id":"seed_4b1e51e0882735e5990ed327bfe60ca0","title":"Events for Integration","order":3}]},{"id":"seed_6d280f72b9c1345121ea5551b247b5cf","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Domain Services in Domain-Driven Design","order":7,"contentType":"LEARNING","contentSlug":"domain-services","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_fcdd9c80fd0f2bf7e3274d9da64074f1","title":"When Logic Doesn't Belong to Entities","order":0},{"id":"seed_62a4da0cb19982e00911589b91377c0c","title":"Domain Service Characteristics","order":1},{"id":"seed_128f19fe2409e5f9d3a981efcbe8ad6c","title":"Domain Service vs Application Service","order":2},{"id":"seed_fdc40c3789b26b27cd5fc2a050916942","title":"Design Guidelines for Domain Services","order":3}]},{"id":"seed_b056fdc7aaf01d3d0a66f5e54b9eb2da","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Bounded Contexts","order":8,"contentType":"LEARNING","contentSlug":"ddd-bounded-contexts","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_6c060fd6554b7bb09f57860df9959995","title":"What is a Bounded Context","order":0},{"id":"seed_96aa10b267c5d4d024ff9207e73f2037","title":"Context Boundaries","order":1},{"id":"seed_1869cf6b696c081d154d73cc678ca278","title":"Context Mapping","order":2},{"id":"seed_4b9f173c69cd7e568181b481f4da02b1","title":"Integration Between Contexts","order":3}]},{"id":"seed_6a4713527b6165ab4ac05c3e03902c7a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Design a Car Rental System","order":9,"contentType":"LLD","contentSlug":"design-car-rental","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_f531aac070e6298aec92871d90734be6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Design a Hotel Management System","order":10,"contentType":"LLD","contentSlug":"design-hotel-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_038c7d43f885c4fac5122b3c0b7028f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Design a Digital Wallet Service","order":11,"contentType":"LLD","contentSlug":"design-digital-wallet","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_fa27eb23a13bb3d4f36bba209d652445","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 24: Domain Driven Design","sectionOrder":24,"title":"Design a Restaurant Management System","order":12,"contentType":"LLD","contentSlug":"design-restaurant-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_e969405d3072826fe3288b0faed809a6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Why Architecture Matters","order":1,"contentType":"LEARNING","contentSlug":"why-architecture-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_21f7b2b5b11d02468f0cb63f30d2a87d","title":"Architecture as Structural Decisions","order":0},{"id":"seed_ce25f9ccc61daafa493d36f9e3d92ab8","title":"Cost of Poor Architecture","order":1},{"id":"seed_a2a78c4a542eaa78d8827f529335d3e8","title":"Architecture and Testability","order":2},{"id":"seed_1bb28599b9caa8ef65e5d80e7ae0b1b2","title":"Architecture and Change","order":3}]},{"id":"seed_9d88a999847f23611ddf1f33560c7b85","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Traditional Layered Architecture","order":2,"contentType":"LEARNING","contentSlug":"traditional-layered-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_274e3d071463f1455c2b376b4e6b7516","title":"Presentation, Business, Data Layers","order":0},{"id":"seed_4cd95857018e73b47b5413c017d22640","title":"Layer Dependencies","order":1},{"id":"seed_92900700f8a28a70795705511c519ccf","title":"Benefits and Limitations","order":2},{"id":"seed_0ddc0662fe1967208c4430e5ae4ed87e","title":"When Layered Architecture Works","order":3}]},{"id":"seed_87776ac6b08a2cf2dee32ce800992d94","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Hexagonal Architecture (Ports & Adapters)","order":3,"contentType":"LEARNING","contentSlug":"hexagonal-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_d56baf3163e701716f5c4ec300d15886","title":"Core Domain at Center","order":0},{"id":"seed_deb18e97459617bb4ed9bb0de4fe9953","title":"Ports as Interfaces","order":1},{"id":"seed_14e0c3582a07a1010679b0cfa68e763f","title":"Adapters as Implementations","order":2},{"id":"seed_71bb6dfebd9003eda004058c5f68c4f7","title":"Inversion of Dependencies","order":3}]},{"id":"seed_e36d409ac217efeb3bd628f702a4183b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Onion Architecture: Domain-Centric System Design","order":4,"contentType":"LEARNING","contentSlug":"onion-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_816da432552d55683e46873fd9691c64","title":"Core at Center, Infrastructure at Edge","order":0},{"id":"seed_0fdfe52eb4b4bac052f04f3ecb4e9fd1","title":"Layers and Dependencies","order":1},{"id":"seed_6467a3ae6be52b5db4d4b98329e6acba","title":"Comparison with Hexagonal Architecture","order":2},{"id":"seed_537ea1861d043b20a63eb5993e0287b6","title":"Onion Architecture in Practice","order":3}]},{"id":"seed_900e5754b9841ac60ab72998bb78ec1a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Clean Architecture","order":5,"contentType":"LEARNING","contentSlug":"clean-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e9d49226de5c0318a3b4dc102877f52c","title":"Uncle Bob's Clean Architecture","order":0},{"id":"seed_8e91c6094bf7dcc32d82d965b611fc2b","title":"The Dependency Rule","order":1},{"id":"seed_341dc40c171f1e9761c583954422bed5","title":"Entities, Use Cases, Adapters, Frameworks","order":2},{"id":"seed_4daecf6d53905f9cebfe312c59dd4597","title":"Clean Architecture Structure","order":3}]},{"id":"seed_47eac867e3933c50925f76a2d5126e1d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Choosing an Architecture","order":6,"contentType":"LEARNING","contentSlug":"choosing-an-architecture","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_19dc738b6b75528ce3f62f156a041f0a","title":"Architecture Comparison: A Comprehensive Analysis","order":0},{"id":"seed_3b81e4909b2ac1df46081ec1d93b05e1","title":"Project Characteristics and Architecture Fit","order":1},{"id":"seed_200eb01c5e512ed06fc4c230f90bc5f4","title":"Evolution of Architecture: Managing Change Over Time","order":2},{"id":"seed_8b9de0eaa581b36bf5a75dc3d8069e59","title":"Practical Considerations: Implementation and Pitfalls","order":3}]},{"id":"seed_195c934cc23a12776a5750015e53d3a4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 25: Clean Layered Architecture","sectionOrder":25,"title":"Package and Module Organization","order":7,"contentType":"LEARNING","contentSlug":"package-module-organization","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e4fb60f8bc93476bc698a54a06887c2a","title":"Organizing Code by Layer vs Feature","order":0},{"id":"seed_9d7568fbac7e6550a23e66214a2fe1ff","title":"Package Coupling and Cohesion","order":1},{"id":"seed_4a415cd65962f049d2c0175db983a424","title":"Module Boundaries","order":2},{"id":"seed_0277249862e6320dd7ed92491d4c06a1","title":"Practical Organization Strategies","order":3}]},{"id":"seed_d7bbee67563121e8eac197c6b87d4448","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"What Is a Good API?","order":1,"contentType":"LEARNING","contentSlug":"what-is-a-good-api","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_4dd350194e6ef9093ad2d57f87d50ff4","title":"API as Contract","order":0},{"id":"seed_57e1cbc04031945ee14ae403d894527d","title":"Usability Principles","order":1},{"id":"seed_4b2a1ad792b6ffe29e42e5f1cddf37b6","title":"Consistency in API Design","order":2},{"id":"seed_4c0badea4e3bbd91c93968bfc075610b","title":"API Design Process","order":3}]},{"id":"seed_0568d519482b1bc1d4ac631c2e07601e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Method Signature Design","order":2,"contentType":"LEARNING","contentSlug":"method-signature-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_98b07a3e307cc17881df8a9911dabb61","title":"Method Naming Conventions","order":0},{"id":"seed_8744b3ce268d5959ab56cd8ca8b54e24","title":"Parameter Design","order":1},{"id":"seed_fccf7ea9d8a2daa608b96b064f18a1cb","title":"Return Type Design","order":2},{"id":"seed_ab334f13567bd62a943e5ce5bac9b8f2","title":"Overloading Guidelines","order":3}]},{"id":"seed_f8350b1533548ee392cba6848ef6fd41","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Error Handling in APIs","order":3,"contentType":"LEARNING","contentSlug":"error-handling-in-apis","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_c95560913965f9ac6af5b772fb1a5787","title":"Exceptions vs Error Codes","order":0},{"id":"seed_9f91ef93e172f5f912bd93d8dd13b4be","title":"Checked vs Unchecked Exceptions","order":1},{"id":"seed_bc76c004176a26930158ed46d23d3a5c","title":"Error Response Design","order":2},{"id":"seed_f35c684e1b14de57e3989399c5a6f315","title":"Error Documentation","order":3}]},{"id":"seed_591ee39701eb3dbdeb8317a46f343918","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"API Versioning","order":4,"contentType":"LEARNING","contentSlug":"lld-api-versioning","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_fa1b4794ddbf1c20881dfae07e9f28ef","title":"Why Versioning Matters","order":0},{"id":"seed_a2851d737e0bd059dec49e595208b9de","title":"Versioning Strategies","order":1},{"id":"seed_5fe93f388f3b79f187b68806148919cf","title":"Breaking vs Non-Breaking Changes","order":2},{"id":"seed_33d715dd0b452e2bcc1584991ebfa431","title":"Deprecation Handling","order":3}]},{"id":"seed_283d4e739aa1cad00c72f68973fa990d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"RESTful API Design Principles","order":5,"contentType":"LEARNING","contentSlug":"restful-api-design-principles","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_2959887106eabfd7e6a2ff19c6ce6b6f","title":"REST Fundamentals","order":0},{"id":"seed_da5316474bb0406b3fd3b66bf018ff4a","title":"Resource Naming","order":1},{"id":"seed_975db846e115fad8d3aebf23a60464b8","title":"HTTP Methods and Semantics","order":2},{"id":"seed_08b59a342f14168e721f13711ea762d5","title":"Status Codes and Responses","order":3}]},{"id":"seed_ff0cf622c7e78232d3aff5b8627dbe15","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"Data Transfer Object (DTO) Design","order":6,"contentType":"LEARNING","contentSlug":"dto-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_60aa7670a6bfab877adedd3665bfc027","title":"What Are DTOs","order":0},{"id":"seed_71165b7a0fc93adb2747c2202d34b362","title":"DTO vs Domain Objects","order":1},{"id":"seed_b6ea2cfd9833edd600a14e3e5a0dc612","title":"DTO Mapping Strategies","order":2},{"id":"seed_8079da33ef9d8b7037da190d86b167e4","title":"DTO Best Practices","order":3}]},{"id":"seed_58122aff377e2df7afa4cbde77d60384","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 26: Api Interface Design","sectionOrder":26,"title":"API Documentation","order":7,"contentType":"LEARNING","contentSlug":"lld-api-documentation","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_70f471c3badfdd26752eb8f2c5ff92f9","title":"Self-Documenting APIs","order":0},{"id":"seed_05704964293292cf5351263b1d6ca4d0","title":"Documentation Tools and Formats","order":1},{"id":"seed_25686fc180399da40543bea2f4e540fd","title":"Documentation Best Practices","order":2},{"id":"seed_6d03998765d3f737b568a89870e9b1bc","title":"Keeping Documentation Current","order":3}]},{"id":"seed_b4510f16e895b628bec703e1c44bb548","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Persistence Layer Responsibilities","order":1,"contentType":"LEARNING","contentSlug":"persistence-layer-responsibilities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_45426ecd88de11798223f78c781395ed","title":"Data Storage and Retrieval","order":0},{"id":"seed_146996b2b8adbdaa0e2969245aef5b6b","title":"Abstracting Storage Details","order":1},{"id":"seed_e5b81a4690e2abafb503988c4f4b3f01","title":"Transaction Management","order":2},{"id":"seed_906320ad2e22e9e4b2f98e12f34f0692","title":"Query Optimization","order":3}]},{"id":"seed_dc4603e10f4c03575065d7c01f8b9e18","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Repository Pattern Deep Dive","order":2,"contentType":"LEARNING","contentSlug":"repository-pattern-deep-dive","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_492e5809fc4da24477253be187e30f02","title":"Repository as Collection Abstraction","order":0},{"id":"seed_96b55e927a175a2bac5a84c2c89f5cad","title":"Generic vs Specific Repositories","order":1},{"id":"seed_e9a8a969bc99363c626011542312bdc2","title":"Repository Implementation","order":2},{"id":"seed_227430fe6bb114868f493e9d47a7ad40","title":"Unit Testing Repositories","order":3}]},{"id":"seed_87bb1cc41328a11ed417c0934effa700","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Data Access Object (DAO) Pattern","order":3,"contentType":"LEARNING","contentSlug":"dao-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_ce58046c327b88f325400e770563c6df","title":"DAO Definition and Purpose","order":0},{"id":"seed_c41e929257e984ac7e17cd8cda0bf363","title":"DAO vs Repository","order":1},{"id":"seed_c5b85d3a23470292e0bcc3f0d9c49b46","title":"DAO Implementation","order":2},{"id":"seed_53ec85b3018273b0551aa3274f884aea","title":"When to Use DAO","order":3}]},{"id":"seed_d8528ff184ec6d80f953cc86dff376d7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Unit of Work Pattern","order":4,"contentType":"LEARNING","contentSlug":"unit-of-work-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_6a359b3afc83976262170462d493745d","title":"Managing Multiple Changes","order":0},{"id":"seed_c9b33d253566f3a2c03cd29e2c5b4f48","title":"Transaction Boundaries","order":1},{"id":"seed_5698210cb5ce73e91032f53bcbcd6992","title":"Unit of Work Implementation","order":2},{"id":"seed_7f02fe443f5c58a4b21cbf8f528f3654","title":"Integration with Repositories","order":3}]},{"id":"seed_c98805d55ac5cb5e70498370a1223eba","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Object-Relational Mapping Considerations","order":5,"contentType":"LEARNING","contentSlug":"orm-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_8bd59ddfdf6c23b58770593dd47c72b2","title":"What is ORM","order":0},{"id":"seed_4e6439b2e5fe2b60571cf6135a2c00fd","title":"ORM Benefits and Trade-offs","order":1},{"id":"seed_2639886733db66013a4771ecd2bcc997","title":"Mapping Strategies","order":2},{"id":"seed_4f525e590eb07ea8c4a05cc1a44cfa2e","title":"Performance Considerations","order":3}]},{"id":"seed_0281bee3cbc4ea9b5fe9a5441b08068b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Data Modeling for Low-Level Design","order":6,"contentType":"LEARNING","contentSlug":"data-modeling-for-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_e4e564631f46e91a12187158e4d24929","title":"Entity Relationships in Code","order":0},{"id":"seed_b794f6051b149e41bb358941d1a0593b","title":"One-to-One, One-to-Many, Many-to-Many Relationships","order":1},{"id":"seed_7c769f3d6d316ea5a0b1f753b8ab3c48","title":"Lazy vs Eager Loading","order":2},{"id":"seed_6283bed82081debe847c10bbd564170d","title":"Normalization vs Denormalization Trade-offs","order":3}]},{"id":"seed_4962bf5ab4784167e4ee6f1a693379ca","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Database Transactions at LLD Level","order":7,"contentType":"LEARNING","contentSlug":"database-transactions-at-lld-level","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_1e631a10943b0263c717206c15be0f73","title":"ACID Properties","order":0},{"id":"seed_d1f8795686288e5de54f3280792ab09d","title":"Transaction Boundaries in Code","order":1},{"id":"seed_36f6e18be76dd44b696ec4262af7c507","title":"Isolation Levels","order":2},{"id":"seed_0906e8292bff4c2d38a5f3cf1309617f","title":"Handling Transaction Failures","order":3}]},{"id":"seed_f20f6b27dbeb9d4966123c8bb4fc6beb","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"An unsuccessful credit capture changes account balances","order":8,"contentType":"REPO","contentSlug":"credit-reservations-capture-recovery","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_8f24fa2fa8f94d1d99441c1feef176e5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 27: Persistence Layer Design","sectionOrder":27,"title":"Capture reserved credit only once","order":9,"contentType":"CODE_REVIEW","contentSlug":"credit-reservations-review-capture-recovery","description":null,"estimatedMins":35,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_bea5f9bc1d6e29035e6e8e5dbbffc261","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Why Caching Matters","order":1,"contentType":"LEARNING","contentSlug":"lld-why-caching-matters","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_b77302054be2fa99625f675d4d784e87","title":"Performance Benefits","order":0},{"id":"seed_ece66663e7e01e776e7b2e9c4c701213","title":"Reducing Resource Consumption","order":1},{"id":"seed_32c5c8d59cc058753bd83b6d99386fa0","title":"Caching Trade-offs","order":2},{"id":"seed_1841fb051d578e2095a9b5de4887f9ab","title":"When to Cache","order":3}]},{"id":"seed_10ef959e8938013bc82b751fc288c095","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Patterns","order":2,"contentType":"LEARNING","contentSlug":"cache-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_3c195b6d6e4c306a09ef237c7d3f4dc3","title":"Cache-aside Pattern (Lazy-loading Cache)","order":0},{"id":"seed_e1fb574749f30e9e0f49b5c62f4b2ae0","title":"Read-Through Cache Pattern","order":1},{"id":"seed_ccffd021b12ee9a6aa551f52cb5a8a7d","title":"Write-Through Cache Pattern","order":2},{"id":"seed_5019c943127fed287ca6fdbd983b65ea","title":"Write-behind Cache Pattern (Write-back)","order":3}]},{"id":"seed_0d28bdca3ae62b9f4e68fd8bcd4edb8d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Design Considerations","order":3,"contentType":"LEARNING","contentSlug":"cache-design-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_41eac1b57178a0b30da4808fcfa82752","title":"Cache Key Design","order":0},{"id":"seed_d9fdc1401c12b2c61e6da93de3754a2a","title":"Cache Size and Eviction Policies","order":1},{"id":"seed_0a45280dc2bb580e50b70dea249688a7","title":"Distributed vs Local Cache","order":2},{"id":"seed_3c7a53242aefbb432ec286466137fa55","title":"Cache Warming Strategies","order":3}]},{"id":"seed_a424d8b598bb6cca682da8a79b89aed3","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Cache Testing and Monitoring","order":4,"contentType":"LEARNING","contentSlug":"cache-testing-and-monitoring","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_7b0ffc37ca8e80ed60db975fde28cd14","title":"Testing Cached Behavior","order":0},{"id":"seed_cdf3f1b6cbc3449715c91b487cc60df7","title":"Cache Hit/Miss Metrics","order":1},{"id":"seed_c8d0a53bc1778c1543769ccfc3b0fc74","title":"Debugging Cache Issues","order":2},{"id":"seed_3e413ac73993cfa5ac1a8128ce7864fb","title":"Cache Performance Tuning","order":3}]},{"id":"seed_3d9e2b3a0c8dccfe15a2a2bf8980df75","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Design an LRU Cache","order":5,"contentType":"LLD","contentSlug":"design-lru-cache","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_0c61d1d0e0f07e5de49b3d0a141b3841","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Design Thread-Safe Cache with TTL","order":6,"contentType":"LLD","contentSlug":"design-cache-with-ttl","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_47ea1e7295fe4da5c0272836594bc6ab","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies","sectionOrder":28,"title":"Design Concurrent Bloom Filter","order":7,"contentType":"LLD","contentSlug":"design-bloom-filter","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_4b3cd8a6c5cc668e960c80db504cef49","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies Lld","sectionOrder":29,"title":"Cache Invalidation Strategies","order":1,"contentType":"LEARNING","contentSlug":"lld-cache-invalidation-strategies","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_7cd1d13e4f84ece910f8d356faf15e04","title":"Time-Based Expiration","order":0},{"id":"seed_61e6716095c6d356e0df03304a807cc0","title":"Event-Based Invalidation","order":1},{"id":"seed_5360297a7a98aa295a83d66b9470c686","title":"Cache Versioning","order":2},{"id":"seed_3b58192265200b7910e82db334a79266","title":"Dealing with Stale Data","order":3}]},{"id":"seed_49efc881b04b3a49d57201aa5dd4ea32","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 28: Caching Strategies Lld","sectionOrder":29,"title":"Caching in Object Design","order":2,"contentType":"LEARNING","contentSlug":"caching-in-object-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_09f42d345b4d721c66ababc3191e6760","title":"Memoization Pattern","order":0},{"id":"seed_b9abc3b9e0abedc0374238190d1f7902","title":"Lazy Loading with Caching","order":1},{"id":"seed_03d34df9645f45dd975c2932c3dfa558","title":"Caching Computed Properties","order":2},{"id":"seed_d13ce4a3b452a60e24d4e1855270eed4","title":"Cache as Collaborator","order":3}]},{"id":"seed_b82e80ae95c58d41ffe5c6870b9b59f2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Introduction to Event-Driven Design","order":1,"contentType":"LEARNING","contentSlug":"introduction-to-event-driven-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_d5c5f9b9f2379a9ba14f0e0f3ee51fd0","title":"What is Event-Driven Design","order":0},{"id":"seed_730f2b56caa7c09b1a3e29af674be4df","title":"Events vs Commands","order":1},{"id":"seed_697105e4bddd69169b0497e1d655a810","title":"Benefits of Event-Driven Approach","order":2},{"id":"seed_e0c635b492fe081f115a678cae2cf2b1","title":"When to Use Events","order":3}]},{"id":"seed_8f79c7e0b23b60ea393ad98d03690b38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Domain Events","order":2,"contentType":"LEARNING","contentSlug":"lld-event-driven-design-domain-events","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_274e2853545906b23ead8be4728de36a","title":"Recap from DDD Chapter","order":0},{"id":"seed_6845178ae0735d91f160da68607c9e77","title":"Designing Domain Events","order":1},{"id":"seed_2456a1e6bf73574131718ec625fe7925","title":"Event Naming and Structure","order":2},{"id":"seed_e07b22e7a88b2a3c1988b99f14aaba4e","title":"Immutable Event Objects","order":3}]},{"id":"seed_06bbd72d0bb249a33271106d683547fd","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Handlers","order":3,"contentType":"LEARNING","contentSlug":"event-handlers","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_78888e3578c37a9b00bb8f98ce26ed85","title":"What is an Event Handler","order":0},{"id":"seed_bf9ecf0fd6b820d1859006339adc01b8","title":"Handler Design Principles","order":1},{"id":"seed_3df3282392c1e818de142673cbc08579","title":"Single vs Multiple Handlers","order":2},{"id":"seed_7ffe58b7f9d49de4babf24e5f6e9e7bb","title":"Handler Ordering","order":3}]},{"id":"seed_b2e883e2e24a18967d8a348011cfee38","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Publish-Subscribe Pattern","order":4,"contentType":"LEARNING","contentSlug":"publish-subscribe-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_eb66c86061ecb09002339aa30e9ba166","title":"Publisher and Subscriber Roles","order":0},{"id":"seed_26cd0929a07908f57eff778c86f0a39a","title":"Event Bus/Dispatcher","order":1},{"id":"seed_2ae9527cdc2361a7f0be643c9350bf95","title":"Coupling and Decoupling","order":2},{"id":"seed_82b67949af3dffeaa87de9a3283f23f9","title":"Implementation Approaches","order":3}]},{"id":"seed_109ac57bdeca7226070a67990d371774","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event Sourcing Basics","order":5,"contentType":"LEARNING","contentSlug":"event-sourcing-basics","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_8c50cd98efcc90a41cbd94f3cdc6595f","title":"What is Event Sourcing","order":0},{"id":"seed_c25c25c08823dfc6d5eedadd836a1fa7","title":"Events as Source of Truth","order":1},{"id":"seed_73f41881e821e035e538966fb0628670","title":"Reconstructing State from Events","order":2},{"id":"seed_81330f9e8de3a5de556260871b32c67f","title":"Event Sourcing Trade-offs","order":3}]},{"id":"seed_8d837d5960373ce745a8f934a8c7ca36","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Event-Driven Integration","order":6,"contentType":"LEARNING","contentSlug":"event-driven-integration","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_596bcd9b4642a6d77f1743b1b30f3f83","title":"Events Across Boundaries","order":0},{"id":"seed_7a86458c5ee5d3d4c00dceff0586172d","title":"Event Serialization","order":1},{"id":"seed_28a85bb88b293bcb09f3b56491703ae8","title":"Event Versioning","order":2},{"id":"seed_d6b70e5f2a506a35b432f20519df56a0","title":"Integration Patterns","order":3}]},{"id":"seed_ed06adfc099b4102e2b52095d918f083","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Testing Event-Driven Designs","order":7,"contentType":"LEARNING","contentSlug":"testing-event-driven-designs","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_58d841b8fa62b59fa9a52f5e82d71f04","title":"Testing Event Raising","order":0},{"id":"seed_ba5240417e07b6161d5fc09872ec5132","title":"Testing Event Handling","order":1},{"id":"seed_a2f6320d44153e92981d12c3a51d61e2","title":"Integration Testing with Events","order":2},{"id":"seed_88ca68557d79cb60894ca2af259fbcb9","title":"Event Debugging","order":3}]},{"id":"seed_043b0c1db291f6c532207168f843b506","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 29: Event Driven Design","sectionOrder":30,"title":"Design a Pub Sub System","order":8,"contentType":"LLD","contentSlug":"design-pub-sub","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.854Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[]},{"id":"seed_c1ad9b422bfa797c7b9e020e99593a13","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"What Is Resource Management?","order":1,"contentType":"LEARNING","contentSlug":"what-is-resource-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:30.435Z","pages":[{"id":"seed_49c0b402adde5aac04c17111c30faf41","title":"Definition of Resources","order":0},{"id":"seed_6705d004266874e989eb5f76f06915c7","title":"Types of Resources: Memory, Files, Connections, Handles","order":1},{"id":"seed_72c1b6c5b13fdd9d6d4b2b60eaf0d9f0","title":"Resource Lifecycle","order":2},{"id":"seed_af26fd0ccf70a81fdc7bc6dca92f7fbb","title":"Why Resource Management Matters","order":3}]},{"id":"seed_f5f13bebb6d4c714f5a01df235277b70","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Object Lifecycle Management","order":2,"contentType":"LEARNING","contentSlug":"object-lifecycle-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_c3054cedccf8b723c746a3aeff9a5db2","title":"Creation, Use, and Disposal Phases","order":0},{"id":"seed_15cd689d189193ba66aa0264ed15c52e","title":"Deterministic vs Non-deterministic Cleanup","order":1},{"id":"seed_0203130e62de0ea910f24e51c552f23f","title":"Finalizers and Their Problems","order":2},{"id":"seed_4a5c2e783817c76815cf97b8121b015b","title":"Explicit Cleanup Methods","order":3}]},{"id":"seed_8d20adecb3526f7ee11180a1e9c34eb1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Disposable Pattern","order":3,"contentType":"LEARNING","contentSlug":"disposable-pattern","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_d810b1d358e913977cc31b0b2d3fea9f","title":"Disposable Interface Concept","order":0},{"id":"seed_84ad126b31757095721f837dd2f71c34","title":"Using Disposable Objects Safely","order":1},{"id":"seed_874bc6950c9728ebf611003520874a79","title":"Resource Cleanup Guarantee","order":2},{"id":"seed_ab8b7c7c74c56ef995ceb79c15b5448e","title":"Nested Disposables","order":3}]},{"id":"seed_cf0472cf09370350a71f37aa0aa85cd8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Connection Pooling","order":4,"contentType":"LEARNING","contentSlug":"lld-connection-pooling","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_3c141cc959a4c13c061b50f64f0b42ab","title":"Why Pool Connections","order":0},{"id":"seed_224ba89691884c7c8b5eeb9bc9c442b8","title":"Pool Design Considerations","order":1},{"id":"seed_79a91340ad922bba556a0772d518a438","title":"Pool Size Management","order":2},{"id":"seed_0d76863b2eee794abf199a57afe22515","title":"Returning Connections to Pool","order":3}]},{"id":"seed_b0764df0bb8da458e56a2b2294848694","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Memory Management Considerations","order":5,"contentType":"LEARNING","contentSlug":"memory-management-considerations","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_1bf1b841c5fe7b3f757dfdcdf3c33baf","title":"Stack vs Heap Memory","order":0},{"id":"seed_3807e6c49245b738c2352ae7042f28fb","title":"Object References and Garbage Collection","order":1},{"id":"seed_5a3e4e3f307540d7ddd4d9696cfec359","title":"Memory Leaks in Managed Languages","order":2},{"id":"seed_f00f8fe51730a0dd2495c273056423a8","title":"Weak References","order":3}]},{"id":"seed_f19607253ce9792bb396e69a77eed032","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Resource Acquisition Patterns","order":6,"contentType":"LEARNING","contentSlug":"resource-acquisition-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_f451590a99ee37fd4eccce5e64658ac4","title":"RAII: Resource Acquisition Is Initialization","order":0},{"id":"seed_75049ef5c70d4bb180409f07c7430767","title":"Try-with-resources and Using Patterns","order":1},{"id":"seed_8a12198febcb5ad4efbeab824c4ca2fd","title":"Scope-Based Resource Management","order":2},{"id":"seed_4e1b195f38eecf4d96f35242535490ab","title":"Factory Methods for Resources","order":3}]},{"id":"seed_1605a58580415b26519b63986566f30e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 30: Resource Management","sectionOrder":31,"title":"Testing Resource Management","order":7,"contentType":"LEARNING","contentSlug":"testing-resource-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_569ff07ae153d3cff8af9cb17ff1d986","title":"Verifying Resource Cleanup","order":0},{"id":"seed_0860c7364d0b6a9b0e9408238e9aa077","title":"Detecting Resource Leaks","order":1},{"id":"seed_90082a9a12fcbc25e0ef794c831aca8f","title":"Mocking External Resources","order":2},{"id":"seed_a92ad54898adf9c21c3b0bfc7927ab7a","title":"Integration Testing with Resources","order":3}]},{"id":"seed_4f4f61713f44a4748f5dcacd7704044d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Errors vs Exceptions: Foundations of Robust Error Handling","order":1,"contentType":"LEARNING","contentSlug":"errors-vs-exceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_18a31fe39d0172c444c9e4c286485ede","title":"What is an Error","order":0},{"id":"seed_0a1f1303c58dedb3bde24c67c73199db","title":"What is an Exception","order":1},{"id":"seed_170a4ed313a98637f0c5c8ea68d04b5a","title":"When to Use Exceptions","order":2},{"id":"seed_6429c72a79018ecd41dfccef20d9bf6c","title":"Error Handling Philosophy","order":3}]},{"id":"seed_f139140e44bc8284f3283f15b28c6789","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Exception Hierarchy Design","order":2,"contentType":"LEARNING","contentSlug":"exception-hierarchy-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_7d8e2feea1d9f864b35c801f60691f23","title":"Base Exception Classes","order":0},{"id":"seed_bacb82b86765aa047411a5141ea6026b","title":"Custom Exception Classes","order":1},{"id":"seed_a16b496b6b6f1f78d573c1b990ac89e1","title":"Exception Categorization","order":2},{"id":"seed_4da646e268c37126ec539dcb9dfa0986","title":"Naming Conventions","order":3}]},{"id":"seed_59376056950b4eb77ae473f68b7e84f9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Checked vs Unchecked Exceptions","order":3,"contentType":"LEARNING","contentSlug":"checked-vs-unchecked-exceptions","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_8feb2891916b8286b814548dee366b28","title":"Checked Exceptions and Their Trade-offs","order":0},{"id":"seed_9486f7ae305c438e83f5db8312b1f1f1","title":"Unchecked Exceptions and Their Use","order":1},{"id":"seed_ed76ade460b3a8a6085b7e895078c864","title":"Language Differences in Exception Handling","order":2},{"id":"seed_947c54a8442b5cb238bbca705d2c4b7c","title":"Choosing Exception Types","order":3}]},{"id":"seed_90284d6a08cbb23a1d229a429e4d2be1","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Error States and Result Types","order":4,"contentType":"LEARNING","contentSlug":"error-states-and-result-types","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_753697bd3603c0d44d6b670d4c3d68aa","title":"Error States vs Exceptions","order":0},{"id":"seed_67bd2164687de4c98bbfb2eb14f91cd2","title":"Result/Either Type Pattern","order":1},{"id":"seed_37ba2a11036b0b1c307af4ac16f544cd","title":"Option/Maybe Type Pattern","order":2},{"id":"seed_15d08be86cdd85a4f13ffcc7e460b501","title":"When to Use Result Types","order":3}]},{"id":"seed_1eff0831eadd7f32c8dc4eaefea7dbad","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Exception Handling Best Practices","order":5,"contentType":"LEARNING","contentSlug":"exception-handling-best-practices","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_fad69a28175bad1178b5e5b7a26bd760","title":"Catch Specific Exceptions","order":0},{"id":"seed_fea6cb73410cdff9c68535e543cbf679","title":"Don't Swallow Exceptions","order":1},{"id":"seed_3e86db85ebf5d1a37b8862f49208b865","title":"Exception Wrapping and Chaining","order":2},{"id":"seed_61a8a6e721dbd3cf6085bed13ef09099","title":"Clean-up in Exception Handlers","order":3}]},{"id":"seed_9c292ae3f643e1f08e1ee54aa95a8e58","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Validation and Defensive Programming","order":6,"contentType":"LEARNING","contentSlug":"validation-and-defensive-programming","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_ddb1f2c51fc15e1375906e47e5787e32","title":"Input Validation Strategies","order":0},{"id":"seed_bd2c82cea4026ac2c64b51d04849ce2e","title":"Guard Clauses","order":1},{"id":"seed_9102fa1f66ffe35dbc4499b810b4a7c5","title":"Assertions vs Validation","order":2},{"id":"seed_a0c8835bf107b34ed5cfca5892f2cea6","title":"Fail-Fast Principle","order":3}]},{"id":"seed_f20ac222f72ba6bea1f48655fcdfa8d2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Error Handling at Boundaries","order":7,"contentType":"LEARNING","contentSlug":"error-handling-at-boundaries","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_394f052307e80c72e13434cc4946424a","title":"Exception Translation at Layers","order":0},{"id":"seed_1c406a567936054713d2a28fcafb889b","title":"User-Facing Error Messages","order":1},{"id":"seed_8c06a25903ac892902c2123847a84c42","title":"Logging Errors Appropriately","order":2},{"id":"seed_f65204c2450a050fec1ef7b49bee483f","title":"Error Recovery Strategies","order":3}]},{"id":"seed_9393b1e2d6f9a9c79d8a003c70d15aed","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Failed release journals leave a partially published room","order":8,"contentType":"REPO","contentSlug":"release-room-journal-recovery","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_550ab092a467e967b05d297c7f0dd4f8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 31: Exception Error Handling Design","sectionOrder":32,"title":"Isolate the editorial transaction draft","order":9,"contentType":"CODE_REVIEW","contentSlug":"release-room-review-journal-recovery","description":null,"estimatedMins":35,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_f7e1e7a381aa053c8ed9cf96ae771aee","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Why Testing Matters for Low-Level Design","order":1,"contentType":"LEARNING","contentSlug":"why-testing-matters-for-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_13d1e6324c48002a57549ba30024ca73","title":"Testing as Design Feedback","order":0},{"id":"seed_df50df9a5942f3db43981165aac4e15c","title":"Testing for Confidence","order":1},{"id":"seed_71c054aa9a44165d15465b2c8cbfd205","title":"Testing and Maintainability","order":2},{"id":"seed_a27ad3309bf1910a19dcb292b57197e6","title":"TDD and Design Quality","order":3}]},{"id":"seed_40ff9cee014cb4b748bc0a1344050c02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Unit Testing Fundamentals","order":2,"contentType":"LEARNING","contentSlug":"unit-testing-fundamentals","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_7d0379cfefcfb9998504d546aee6bb63","title":"What Is a Unit Test","order":0},{"id":"seed_2bdbfee394a35e725af36d7aee7f3ea3","title":"Test Structure: Arrange, Act, Assert","order":1},{"id":"seed_ceaf1e29c480a2760d23482ee1e4f8fc","title":"Test Naming Conventions","order":2},{"id":"seed_87eba113e0e165dbe85c153492402b37","title":"Test Organization","order":3}]},{"id":"seed_069c54679b4961f071407080de0a8040","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Test Doubles: Mocks, Stubs, Fakes","order":3,"contentType":"LEARNING","contentSlug":"test-doubles-mocks-stubs-fakes","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_9a65014d39abf7c7be849f093c551664","title":"Stubs — Pre-Programmed Returns","order":0},{"id":"seed_7b336af0f103f3ef9e8ebf3192f89fe5","title":"Mocks — Verifying Interactions","order":1},{"id":"seed_221e162554cb530717b13768cc0fea08","title":"Fakes — Working Implementations","order":2},{"id":"seed_891c46fc7d05216f8df923b873989e4f","title":"Choosing the Right Double","order":3}]},{"id":"seed_0650cdf2c09e6c2dd19ea812fa05f4b5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Mocking Dependencies in Object-Oriented Testing","order":4,"contentType":"LEARNING","contentSlug":"mocking-dependencies","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_ce48dc5c4ed424b9d4d18bdb48adfc2b","title":"Why We Mock Dependencies","order":0},{"id":"seed_d97c330c62597bac4ef40ddd35b408bd","title":"Mocking Frameworks Overview","order":1},{"id":"seed_d6d76ce500c9b2a931a7e2c45e273cdb","title":"Mocking Best Practices","order":2},{"id":"seed_1265bf40e3452a7eddb6269a912e033a","title":"Over-Mocking Pitfalls","order":3}]},{"id":"seed_4b048089a091123945ef416a1705bc45","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Test-Driven Development (TDD)","order":5,"contentType":"LEARNING","contentSlug":"test-driven-development-tdd","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_42c0fc5c13a982c01b8b4cd30c33b5fd","title":"TDD Cycle: Red, Green, Refactor","order":0},{"id":"seed_1c7633b960b4c825317e44e47933006e","title":"TDD Benefits for Design","order":1},{"id":"seed_ae886ba8545042cfb6c7f909765ffe3e","title":"Writing Tests First","order":2},{"id":"seed_1cea9547f3fcbcccf815755eaabc6f43","title":"TDD in Practice","order":3}]},{"id":"seed_2b456057eff2dfda7b9bb70fcf99e109","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Testing Private Methods and Internals","order":6,"contentType":"LEARNING","contentSlug":"testing-private-methods-and-internals","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_1a55e4b7fdb234cbf7a491aba415b925","title":"Should We Test Private Methods?","order":0},{"id":"seed_7c825cca8d9a3097010f8ce396d6b8aa","title":"Testing Through Public Interface","order":1},{"id":"seed_d48a6b764f040264ffc36073152f34a9","title":"When to Make Methods Testable","order":2},{"id":"seed_7833578511d56d3b0fe5aba131750182","title":"Design for Testability","order":3}]},{"id":"seed_ad95c3a9dddba788da8eed039a3c9910","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Integration Testing at LLD Level","order":7,"contentType":"LEARNING","contentSlug":"integration-testing-at-lld-level","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_c393d5edabfeb28c4825f755f614a71e","title":"What is Integration Testing","order":0},{"id":"seed_87236fa1f91276e0ed9171088aa63632","title":"Testing Component Interactions","order":1},{"id":"seed_e127919e1b75a6c15e4ee705bddf57a1","title":"Database Integration Testing","order":2},{"id":"seed_9349737f6ee78f0513358728348523d4","title":"Integration Test Strategies","order":3}]},{"id":"seed_deff3612e1ba63663931076321b23df5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Code Coverage and Test Quality","order":8,"contentType":"LEARNING","contentSlug":"code-coverage-and-test-quality","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_cbb0924cc72afe8ce38381cc62159a28","title":"What is Code Coverage","order":0},{"id":"seed_795189cdb25ca21a824da41da17e243c","title":"Coverage Types: Line, Branch, Path","order":1},{"id":"seed_03dea71cb627e4bacc31c29b46207a6d","title":"Coverage Limitations","order":2},{"id":"seed_ffc6802fb23d705ecf2a5ddb52b4bbab","title":"Meaningful vs. Metric-Driven Coverage","order":3}]},{"id":"seed_329cabc38fa5e676c4628cacb15fdbaa","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Temporary access remains valid at its expiry time","order":9,"contentType":"REPO","contentSlug":"access-desk-expiry-boundary","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_40a72c7e212d91d4fb1b3065bb5f7d02","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 32: Testing Object Oriented Designs","sectionOrder":33,"title":"Expire access at the deadline","order":10,"contentType":"CODE_REVIEW","contentSlug":"access-desk-review-expiry-boundary","description":null,"estimatedMins":35,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_1861177da832c9f94511a739d5aa211a","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Logging in Low-Level Design","order":1,"contentType":"LEARNING","contentSlug":"logging-in-lld","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_28481e957f792ec902154f86b4cf2735","title":"Why Logging Matters","order":0},{"id":"seed_49172bde5a90528eb8fa3d275c1bb762","title":"Logging Levels and When to Use Them","order":1},{"id":"seed_9582f6f4775986112367be9414df7f91","title":"What to Log","order":2},{"id":"seed_e0afbd067db99f55760e2b27b87b1f51","title":"Structured Logging","order":3}]},{"id":"seed_6b82f19778d58182faafc6495ed4ceec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Observability Design","order":2,"contentType":"LEARNING","contentSlug":"observability-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_b7aad1ce17f451494725a473f2127fdd","title":"Designing Observable Classes","order":0},{"id":"seed_78324e5a49b99dab8076d3617e1923f2","title":"Metrics and Monitoring Hooks","order":1},{"id":"seed_b3977048cfed2caf9bbfdf6c48d0ae5d","title":"Tracing Considerations","order":2},{"id":"seed_34dd5deab8f7f452bd9df24780eaa0ec","title":"Debug-Friendly Design","order":3}]},{"id":"seed_b57dcef5420a9f6d1d2a06a59a78bbec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Security Patterns in Low-Level Design","order":3,"contentType":"LEARNING","contentSlug":"security-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_7592fea87d503d9af42b929649ae714f","title":"Authentication Design Patterns","order":0},{"id":"seed_84ab3301ed50500a6b07213fb13341e9","title":"Authorization Design Patterns","order":1},{"id":"seed_e576511e3ca8efb8b708f8bb5672beda","title":"Secure Object Design","order":2},{"id":"seed_69c63170b6e1369191520a665ba77ff2","title":"Input Sanitization","order":3}]},{"id":"seed_9fb8d235292aa1c55ffc4bf05f3f8087","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Secrets Management","order":4,"contentType":"LEARNING","contentSlug":"lld-secrets-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_29362fbccb5b4234e8543dd686861b27","title":"Handling Sensitive Data in Code","order":0},{"id":"seed_da7c70066a3a6a92ac64e6b25d8f2c07","title":"Configuration vs Secrets","order":1},{"id":"seed_cb99c57a6461f0a2ef2ba670ea0f0fb4","title":"Secrets Injection","order":2},{"id":"seed_3704c2aafe66b154f180ece7eeea82bc","title":"Avoiding Secrets in Logs","order":3}]},{"id":"seed_97047b89732bd7130a4166bd65e49aec","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Configuration Management","order":5,"contentType":"LEARNING","contentSlug":"lld-configuration-management","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_ab3917e2561efda620210f36250df3db","title":"Hard-Coded vs Configurable Values","order":0},{"id":"seed_70be1efb25a2baac3c7132c09531169b","title":"Configuration Objects and Classes","order":1},{"id":"seed_12d73937ded6cc740e851d09721c90f0","title":"Environment-Based Configuration","order":2},{"id":"seed_579c9aa1f7f0f20d160d21593e9193d8","title":"Configuration Validation","order":3}]},{"id":"seed_c293605b7667addc3a6d06d7c0659149","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 33: Logging Security Configuration","sectionOrder":34,"title":"Feature Flags: Dynamic Control of Software Behavior","order":6,"contentType":"LEARNING","contentSlug":"feature-flags","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_26889055af8282169c37bd1ec0768796","title":"What Are Feature Flags","order":0},{"id":"seed_4c39b503f522b454a2b7e4ab6b4feaaf","title":"Feature Flag Design Patterns","order":1},{"id":"seed_4ed5c3dcf48a8426379634ed3fab03b5","title":"Flag Lifecycle Management","order":2},{"id":"seed_e4ab1e891878dba3eba981e8995f51a7","title":"Testing with Feature Flags","order":3}]},{"id":"seed_5d9b697b8efe24331d37db4008e5f71e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Understanding LLD Problem Statements","order":1,"contentType":"LEARNING","contentSlug":"understanding-lld-problem-statements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_1c31966ae06349aa46b4689e15877879","title":"Reading Requirements Carefully","order":0},{"id":"seed_95c26446d6860e91d883237be69c613a","title":"Identifying Scope and Constraints","order":1},{"id":"seed_421fe424290827f6b63c444bb1b32ac4","title":"Clarifying Ambiguities","order":2},{"id":"seed_c417eb13c1d41aedb4a229bb7dd604e5","title":"Implicit vs Explicit Requirements","order":3}]},{"id":"seed_558782d3e1900dffcf12c15d3cb0fa4b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Gathering Requirements","order":2,"contentType":"LEARNING","contentSlug":"gathering-requirements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_bad454b10d6bb0a7c435ff48d0931971","title":"Functional Requirements","order":0},{"id":"seed_9b4b8660b904c7ed2c69a85affd94fb5","title":"Non-Functional Requirements","order":1},{"id":"seed_8fb30ad2762644a7eb44e141e2b21bfe","title":"Asking Clarifying Questions","order":2},{"id":"seed_260b0885e44f0fd2eaa209559222e31b","title":"Documenting Requirements","order":3}]},{"id":"seed_5a219cc7ca52fa64076fa1f99b67d702","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Identifying Core Entities","order":3,"contentType":"LEARNING","contentSlug":"identifying-core-entities","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_a450d511267ec90f836e5f680734ed11","title":"Noun Extraction Technique","order":0},{"id":"seed_9d70d066b8bc3684d6bdde3ecd8cab1f","title":"Entity vs Attribute Distinction","order":1},{"id":"seed_a854b7e255d16d04595526eba22ee4e5","title":"Essential vs Optional Entities","order":2},{"id":"seed_2a318d07d5b025c2d70ab09bfe1e024d","title":"Entity List Validation","order":3}]},{"id":"seed_1e025dbbd91b0b0373f17ae00089dad8","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Defining Relationships in Low-Level Design","order":4,"contentType":"LEARNING","contentSlug":"defining-relationships","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_1355d84eff69ef67199bf34dd8cbd219","title":"Relationship Types Review","order":0},{"id":"seed_5bce7498dcc0e949a1f347ab57d04daa","title":"Cardinality and Multiplicity","order":1},{"id":"seed_c9c8420bf644f91848bcf3d99e20dfee","title":"Navigability","order":2},{"id":"seed_a1ef0bad0f86cfe15c753037d9028ae6","title":"Relationship Validation","order":3}]},{"id":"seed_4f4fe161105fd25a5d33b47a7454fbd2","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Applying Design Patterns in LLD","order":5,"contentType":"LEARNING","contentSlug":"applying-design-patterns","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_d65e1ead7d1174a8c060227c065f4efd","title":"Pattern Matching to Problems","order":0},{"id":"seed_e4ed99122f68637101d5b75ac0037484","title":"Selecting Appropriate Patterns","order":1},{"id":"seed_987c9e81445ef1bedf94fd9730cfaf5f","title":"Pattern Combination","order":2},{"id":"seed_234b7badf7f4194a8375b9e1b444aad4","title":"Avoiding Over-Engineering","order":3}]},{"id":"seed_cc1d1a47d75fc356a9e5ddcb53b8f1a4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Validating the Design","order":6,"contentType":"LEARNING","contentSlug":"validating-the-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_cf5df028b0e05a3c33fd924baeec4bd1","title":"Design Review Checklist","order":0},{"id":"seed_f1df45b4c9ece8987084358556c4cbf8","title":"SOLID Compliance Check","order":1},{"id":"seed_d716ab9ad06e5f30b7affe1e42495105","title":"Extensibility Validation","order":2},{"id":"seed_aa0ecc3cf29269d03252846117d29851","title":"Simplicity Check","order":3}]},{"id":"seed_2dcaf667097c2de0587d815d4de1c9a7","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 34: Lld Problem Solving Framework","sectionOrder":35,"title":"Iterating and Refining Designs","order":7,"contentType":"LEARNING","contentSlug":"iterating-and-refining","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_340075caa96f4e1755c3bff11a3df90f","title":"Design is Iterative","order":0},{"id":"seed_657e3c390b85393c237a301c2051bcb5","title":"Feedback Incorporation","order":1},{"id":"seed_856c9af332219d815a91584be3f4135e","title":"Trade-off Decisions","order":2},{"id":"seed_fa2b5c556672f1b19fd450b7a8d5c00d","title":"Final Design Documentation","order":3}]},{"id":"seed_822e239d3c3560d84663d1090db0aba6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Case Study: Parking Lot System Design","order":1,"contentType":"LEARNING","contentSlug":"parking-lot-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_1676f268ade8bb384519bb154f5d1535","title":"Requirements Analysis","order":0},{"id":"seed_61fba8f1a5b3ba812a3e29b40e39fec9","title":"Core Entities: Vehicle, ParkingSpot, Ticket, ParkingLot","order":1},{"id":"seed_f37f64993e893c427587d8c3633b1d95","title":"Class Relationships and Design","order":2},{"id":"seed_536d3c726d9052d87c79eeab94624406","title":"Patterns Applied: Factory and Strategy","order":3},{"id":"seed_29eb2e39106370eca2409a5d81cda349","title":"Edge Cases and Extensions","order":4},{"id":"seed_12b368ecd4751078c56b0ee19c5d4df0","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_84f756f5d53c5103e5562ab995bf1cf9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Library Management System","order":2,"contentType":"LEARNING","contentSlug":"library-management-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_7008aa41a1b94847daad408ddfd9cd9a","title":"Requirements Analysis","order":0},{"id":"seed_198b2010f5b5585b862f4719dc1d056b","title":"Core Entities: Book, Member, Loan, Librarian","order":1},{"id":"seed_575b7deae142409315cda7f3b5bb6ae6","title":"Class Relationships and Design","order":2},{"id":"seed_45af667eedafd406706345319affaef1","title":"Patterns Applied: Observer and State","order":3},{"id":"seed_ba9fafbc3e7e6d1839651e3414c21226","title":"Fine Calculation and Reservations","order":4},{"id":"seed_dd6903a4f58c767185f3e7408166cf4c","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_641e4a13c52b22fcc8b25278fbdb826e","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Elevator System Design","order":3,"contentType":"LEARNING","contentSlug":"elevator-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_a17d81328a462722a02f8e5ef508b037","title":"Requirements Analysis for Elevator System","order":0},{"id":"seed_91a78a5d9c9ec0a41643d5976cddcc79","title":"Core Entities: Elevator, Floor, Request, Controller","order":1},{"id":"seed_4900f2e62aebe06b21fc06af8288c854","title":"State Management Design","order":2},{"id":"seed_945e154c5eb90318c4f86cb89107711c","title":"Scheduling Algorithms: FCFS and SCAN","order":3},{"id":"seed_f1a903bc5d4bbea5feccfa6bf2d54b86","title":"Patterns Applied: State, Strategy, Observer","order":4},{"id":"seed_c07ec73e8b23f459791b5a2723a8d183","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_52d436178e0c7535ce8be37bba0f8972","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Chess Game - Low Level Design","order":4,"contentType":"LEARNING","contentSlug":"chess-game","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_f0dec5c01085fda0ea83dc056dd36bdd","title":"Requirements Analysis for Chess Game","order":0},{"id":"seed_7632fff13c50815bdf8a12ca4148db69","title":"Core Entities: Board, Piece, Player, Move","order":1},{"id":"seed_62e78968c15ddc8a22a98e60b5145fdf","title":"Move Validation Design","order":2},{"id":"seed_f8c92dc2d189b8b9895b12cc4be73f97","title":"Game State Management","order":3},{"id":"seed_6a78aaad2073570cbbb295b8986e5aee","title":"Patterns Applied: Strategy, Command, Memento","order":4},{"id":"seed_ed6d8ea6a3f428d6490450aed5535541","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_850de741c37d894c0fce9b96bad6ed0f","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Case Study: Ride-Sharing Service Design","order":5,"contentType":"LEARNING","contentSlug":"ride-sharing-service","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_fe6cd89679af41f3325e6bb5600cb6cc","title":"Requirements Analysis","order":0},{"id":"seed_5fcfb45e8ebe441ef476195382e777d0","title":"Core Entities: Rider, Driver, Trip, Location","order":1},{"id":"seed_89e2de8dde2bda36e754948052c22b02","title":"Matching Algorithm Design","order":2},{"id":"seed_862b3759798fdf90d617c9e754ff4ed9","title":"Pricing and State Management","order":3},{"id":"seed_4cbec1b9fabb384b9441ae6eddaf43fd","title":"Patterns Applied: Strategy, Observer, State","order":4},{"id":"seed_a8daf560909f45caa2435304131af715","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_8ee6ebe6ec8f19bb0dfba0f25657576d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Hotel Booking System","order":6,"contentType":"LEARNING","contentSlug":"hotel-booking-system","description":null,"estimatedMins":60,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_1b89f540be476b18b75f5051cb602fc9","title":"Requirements Analysis","order":0},{"id":"seed_73ffd17a452827987f1be32d4b656628","title":"Core Entities: Hotel, Room, Reservation, Guest","order":1},{"id":"seed_3be4e72b3ef8ec4370be7bfd7589ac9a","title":"Booking and Pricing Design","order":2},{"id":"seed_6718e57c13c81edd302fac2893cdda58","title":"Availability Management","order":3},{"id":"seed_478559d71e3f8f6965216cec4f4d9d90","title":"Patterns Applied: Factory, State, Template Method","order":4},{"id":"seed_6cd46d1faeb31ec651b6a7854f61fc59","title":"Complete Design Walkthrough","order":5}]},{"id":"seed_5b259c5d0f3176d625307799bbe11e98","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Stack Overflow","order":7,"contentType":"LLD","contentSlug":"design-stack-overflow","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_937f9a51f4f24d7b16df163fc14c9bb0","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design LinkedIn","order":8,"contentType":"LLD","contentSlug":"design-linkedin","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_0b745e9a66b9e3f1f7432167fabfa782","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design an Online Auction System","order":9,"contentType":"LLD","contentSlug":"design-online-auction","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_2e3bb7875ad4b444c6b692d4a11a1677","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design an Airline Management System","order":10,"contentType":"LLD","contentSlug":"design-airline-management","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_58c1f2ceef69f589aecdb226f25fecc5","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Facebook","order":11,"contentType":"LLD","contentSlug":"design-facebook","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_4a2d6b36691238b41a1037845f53786c","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design a Concert Ticket Booking System","order":12,"contentType":"LLD","contentSlug":"design-concert-ticket-booking","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_981bd424f35aa5fe75f3a03e23c4e43b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design CricInfo","order":13,"contentType":"LLD","contentSlug":"design-cricinfo","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_1ab990407ae950129ea6903b74a960a6","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Splitwise","order":14,"contentType":"LLD","contentSlug":"design-splitwise","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_5307dae41716854ccdf6fc48f6b284f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design a Chess Game","order":15,"contentType":"LLD","contentSlug":"design-chess-game","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_bd37aa6c753889b7b309b59ea3b64489","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Uber","order":16,"contentType":"LLD","contentSlug":"design-uber","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_d80f4189c64a26a2fdfffae37ddf7c88","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design a Course Registration System","order":17,"contentType":"LLD","contentSlug":"design-course-registration-system","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_9aec4fc0a69655520f73944c46ff36d9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design a Movie Ticket Booking System","order":18,"contentType":"LLD","contentSlug":"design-movie-ticket-booking-system","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_360b0cc966c574a33575dafc88804cfc","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Amazon","order":19,"contentType":"LLD","contentSlug":"design-amazon","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_b911ffee279a7df1672e7630b3a35c2d","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Zerodha","order":20,"contentType":"LLD","contentSlug":"design-zerodha","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_73c73e569df8b0ffc490fa81fc7a27c4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Spotify","order":21,"contentType":"LLD","contentSlug":"design-spotify","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_2330697eb513e815a379c2c5b77414f4","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 35: Case Studies","sectionOrder":36,"title":"Design Swiggy","order":22,"contentType":"LLD","contentSlug":"design-swiggy","description":null,"estimatedMins":60,"createdAt":"2026-10-17T16:02:58.914Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[]},{"id":"seed_4259da5e2ba0b0c3cdaa93d220770d09","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"What Interviewers Look For in LLD Interviews","order":1,"contentType":"LEARNING","contentSlug":"lld-what-interviewers-look-for","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_da263a5448ed121a4c5d3fc272dcd81a","title":"Design Thinking Ability","order":0},{"id":"seed_ba4096d4c5f143cad684462b492ada30","title":"Object-Oriented Understanding","order":1},{"id":"seed_f768b48815af69a5d8af8d82f907d9ad","title":"Pattern Knowledge Application","order":2},{"id":"seed_519b1bd6e6083d844c2004f25cc3c993","title":"Communication Skills","order":3}]},{"id":"seed_0e8caf0f2da03d1990014db94d064783","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Time Management in LLD Interviews","order":2,"contentType":"LEARNING","contentSlug":"time-management-lld-interviews","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_3e21069a30231856c126c234815d2603","title":"Typical LLD Interview Structure","order":0},{"id":"seed_e9fcff2f8911084ddacd9d18611a0c64","title":"Time Allocation Strategy","order":1},{"id":"seed_aad8bb3cc28d36c03a8f7c0e4fbb2d3f","title":"When to Start Coding","order":2},{"id":"seed_2e7a3f8c0bb03c072a32d1bad7721e9b","title":"Handling Time Pressure","order":3}]},{"id":"seed_c16aca79dcb218e6fa6f6169da9265ba","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Clarifying Requirements in LLD Interviews","order":3,"contentType":"LEARNING","contentSlug":"lld-clarifying-requirements","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_db7d4f1f1a0d5e57e543fd0f1170a312","title":"Essential Questions to Ask","order":0},{"id":"seed_e2019daaa44bb3acebee9a72788386b7","title":"Scoping the Problem","order":1},{"id":"seed_d6b43a05aedc60564d0d74acc12914e0","title":"Documenting Assumptions","order":2},{"id":"seed_cb63693d118b34c7739b4f4ed434f75b","title":"Confirming Understanding","order":3}]},{"id":"seed_969e788846442d00cb875e8721a1e893","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Communicating Your Design","order":4,"contentType":"LEARNING","contentSlug":"communicating-your-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_360eb4a18ea3e6797ba4b7ceb7ea84dd","title":"Thinking Aloud","order":0},{"id":"seed_13bf603d110c6f6501f3c41a5bad0e72","title":"Using Diagrams Effectively","order":1},{"id":"seed_01ec5e9567efcab929d7c70b680e1534","title":"Explaining Trade-offs","order":2},{"id":"seed_bdb841b06da225ab0869a0aea897fe7f","title":"Handling Questions and Feedback","order":3}]},{"id":"seed_c967003be2a3233b7b309d08a0de2a04","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Handling Constraints & Trade-offs in LLD Interviews","order":5,"contentType":"LEARNING","contentSlug":"handling-constraints-trade-offs","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_a10d1c3521eea084f4ed398798d2026d","title":"Discussing Design Alternatives","order":0},{"id":"seed_6da9545cca8153c9a1f372e152af8ff8","title":"Making and Justifying Decisions","order":1},{"id":"seed_24660b931078a52be9caee06dcc1489e","title":"Acknowledging Limitations","order":2},{"id":"seed_1b866bfb23c93f2ffe30034beaaed05d","title":"Adapting to New Requirements","order":3}]},{"id":"seed_ddbe0c6f5048d91649789374b53ce876","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Common LLD Interview Problems","order":6,"contentType":"LEARNING","contentSlug":"common-lld-interview-problems","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_610c40b8e4d4c880a534623080782107","title":"Most Frequently Asked Problems","order":0},{"id":"seed_0d01ff3a995740011ad805790b8332d4","title":"Problem Categories and Patterns","order":1},{"id":"seed_202637f1b652509203b4166bba97b338","title":"Practice Problem List","order":2},{"id":"seed_798941b26ec51b8d7d651bf174d6918b","title":"Mock Interview Recommendations","order":3}]},{"id":"seed_00f30fd2acf005d93c84abdf67352391","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"From Design to Code","order":7,"contentType":"LEARNING","contentSlug":"from-design-to-code","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_3b212fc3946d34c00d181dce0e24015c","title":"Translating UML to Code","order":0},{"id":"seed_b1b9f70ff4a403476f0af2aa1007d20d","title":"Class Implementation Order","order":1},{"id":"seed_7e2e981a57a66be4a047ddf897409225","title":"Interface First, Implementation Second","order":2},{"id":"seed_bd5be1e5567c3f6c7c8db543eaff920d","title":"Incremental Implementation","order":3}]},{"id":"seed_4d94ab5db9fb0da5746416f8f10850c9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Code Organization & Structure","order":8,"contentType":"LEARNING","contentSlug":"code-organization-structure","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_6b16378945109a45646f317e9269e765","title":"Project Structure for LLD Implementations","order":0},{"id":"seed_cfd3d2d8ebe2c68074197b150308add1","title":"Package Organization","order":1},{"id":"seed_8831947c754541174383070d203a425a","title":"Naming Conventions","order":2},{"id":"seed_8c0376527a2f5b42bf4fed6ad7ad31c5","title":"Code Layout Best Practices","order":3}]},{"id":"seed_e0db266c4e4e3a884790a41d83d3020b","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Refactoring Toward Better Design","order":9,"contentType":"LEARNING","contentSlug":"refactoring-toward-better-design","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_806bdd8a5ca09e754c85b6675e63108e","title":"When to Refactor","order":0},{"id":"seed_ede8ac230f9644d956975621ff30cb86","title":"Common Refactoring Patterns","order":1},{"id":"seed_ed4a8e115e46603a3a586e63c10a07cd","title":"Maintaining Behavior During Refactoring","order":2},{"id":"seed_64f0c6c55229472a7bb7e05a5dab767c","title":"Continuous Improvement","order":3}]},{"id":"seed_f268ce96bbb53953310e265b7e8ab7b9","learningPathId":"seed_b1c1819c63aa9f334f74c0abf4cdd62a","section":"Chapter 36: Lld Interview Strategies Implementation","sectionOrder":37,"title":"Continuous Learning in Low-Level Design","order":10,"contentType":"LEARNING","contentSlug":"continuous-learning","description":null,"estimatedMins":40,"createdAt":"2026-10-15T17:47:45.178Z","updatedAt":"2026-10-17T16:28:31.033Z","pages":[{"id":"seed_79871a86a11d9da6f3551f3811452684","title":"Building LLD Fluency","order":0},{"id":"seed_f371f933581e1e3f9b9dae0ec0181f08","title":"Resources for Further Learning","order":1},{"id":"seed_b7d84416eb3a37790fe0857ab5ad6cf1","title":"Practice Strategies","order":2},{"id":"seed_25d8de738d7a0b11eaf5cfc8c40c3764","title":"Community Engagement","order":3}]}]},"currentModule":"$46:props:state:queries:1:state:data:json:path:modules:78","prevModule":"$46:props:state:queries:1:state:data:json:path:modules:77","nextModule":"$46:props:state:queries:1:state:data:json:path:modules:79","allModules":"$46:props:state:queries:1:state:data:json:path:modules"},"meta":{"values":{"path.createdAt":["Date"],"path.updatedAt":["Date"],"path.modules.0.createdAt":["Date"],"path.modules.0.updatedAt":["Date"],"path.modules.1.createdAt":["Date"],"path.modules.1.updatedAt":["Date"],"path.modules.2.createdAt":["Date"],"path.modules.2.updatedAt":["Date"],"path.modules.3.createdAt":["Date"],"path.modules.3.updatedAt":["Date"],"path.modules.4.createdAt":["Date"],"path.modules.4.updatedAt":["Date"],"path.modules.5.createdAt":["Date"],"path.modules.5.updatedAt":["Date"],"path.modules.6.createdAt":["Date"],"path.modules.6.updatedAt":["Date"],"path.modules.7.createdAt":["Date"],"path.modules.7.updatedAt":["Date"],"path.modules.8.createdAt":["Date"],"path.modules.8.updatedAt":["Date"],"path.modules.9.createdAt":["Date"],"path.modules.9.updatedAt":["Date"],"path.modules.10.createdAt":["Date"],"path.modules.10.updatedAt":["Date"],"path.modules.11.createdAt":["Date"],"path.modules.11.updatedAt":["Date"],"path.modules.12.createdAt":["Date"],"path.modules.12.updatedAt":["Date"],"path.modules.13.createdAt":["Date"],"path.modules.13.updatedAt":["Date"],"path.modules.14.createdAt":["Date"],"path.modules.14.updatedAt":["Date"],"path.modules.15.createdAt":["Date"],"path.modules.15.updatedAt":["Date"],"path.modules.16.createdAt":["Date"],"path.modules.16.updatedAt":["Date"],"path.modules.17.createdAt":["Date"],"path.modules.17.updatedAt":["Date"],"path.modules.18.createdAt":["Date"],"path.modules.18.updatedAt":["Date"],"path.modules.19.createdAt":["Date"],"path.modules.19.updatedAt":["Date"],"path.modules.20.createdAt":["Date"],"path.modules.20.updatedAt":["Date"],"path.modules.21.createdAt":["Date"],"path.modules.21.updatedAt":["Date"],"path.modules.22.createdAt":["Date"],"path.modules.22.updatedAt":["Date"],"path.modules.23.createdAt":["Date"],"path.modules.23.updatedAt":["Date"],"path.modules.24.createdAt":["Date"],"path.modules.24.updatedAt":["Date"],"path.modules.25.createdAt":["Date"],"path.modules.25.updatedAt":["Date"],"path.modules.26.createdAt":["Date"],"path.modules.26.updatedAt":["Date"],"path.modules.27.createdAt":["Date"],"path.modules.27.updatedAt":["Date"],"path.modules.28.createdAt":["Date"],"path.modules.28.updatedAt":["Date"],"path.modules.29.createdAt":["Date"],"path.modules.29.updatedAt":["Date"],"path.modules.30.createdAt":["Date"],"path.modules.30.updatedAt":["Date"],"path.modules.31.createdAt":["Date"],"path.modules.31.updatedAt":["Date"],"path.modules.32.createdAt":["Date"],"path.modules.32.updatedAt":["Date"],"path.modules.33.createdAt":["Date"],"path.modules.33.updatedAt":["Date"],"path.modules.34.createdAt":["Date"],"path.modules.34.updatedAt":["Date"],"path.modules.35.createdAt":["Date"],"path.modules.35.updatedAt":["Date"],"path.modules.36.createdAt":["Date"],"path.modules.36.updatedAt":["Date"],"path.modules.37.createdAt":["Date"],"path.modules.37.updatedAt":["Date"],"path.modules.38.createdAt":["Date"],"path.modules.38.updatedAt":["Date"],"path.modules.39.createdAt":["Date"],"path.modules.39.updatedAt":["Date"],"path.modules.40.createdAt":["Date"],"path.modules.40.updatedAt":["Date"],"path.modules.41.createdAt":["Date"],"path.modules.41.updatedAt":["Date"],"path.modules.42.createdAt":["Date"],"path.modules.42.updatedAt":["Date"],"path.modules.43.createdAt":["Date"],"path.modules.43.updatedAt":["Date"],"path.modules.44.createdAt":["Date"],"path.modules.44.updatedAt":["Date"],"path.modules.45.createdAt":["Date"],"path.modules.45.updatedAt":["Date"],"path.modules.46.createdAt":["Date"],"path.modules.46.updatedAt":["Date"],"path.modules.47.createdAt":["Date"],"path.modules.47.updatedAt":["Date"],"path.modules.48.createdAt":["Date"],"path.modules.48.updatedAt":["Date"],"path.modules.49.createdAt":["Date"],"path.modules.49.updatedAt":["Date"],"path.modules.50.createdAt":["Date"],"path.modules.50.updatedAt":["Date"],"path.modules.51.createdAt":["Date"],"path.modules.51.updatedAt":["Date"],"path.modules.52.createdAt":["Date"],"path.modules.52.updatedAt":["Date"],"path.modules.53.createdAt":["Date"],"path.modules.53.updatedAt":["Date"],"path.modules.54.createdAt":["Date"],"path.modules.54.updatedAt":["Date"],"path.modules.55.createdAt":["Date"],"path.modules.55.updatedAt":["Date"],"path.modules.56.createdAt":["Date"],"path.modules.56.updatedAt":["Date"],"path.modules.57.createdAt":["Date"],"path.modules.57.updatedAt":["Date"],"path.modules.58.createdAt":["Date"],"path.modules.58.updatedAt":["Date"],"path.modules.59.createdAt":["Date"],"path.modules.59.updatedAt":["Date"],"path.modules.60.createdAt":["Date"],"path.modules.60.updatedAt":["Date"],"path.modules.61.createdAt":["Date"],"path.modules.61.updatedAt":["Date"],"path.modules.62.createdAt":["Date"],"path.modules.62.updatedAt":["Date"],"path.modules.63.createdAt":["Date"],"path.modules.63.updatedAt":["Date"],"path.modules.64.createdAt":["Date"],"path.modules.64.updatedAt":["Date"],"path.modules.65.createdAt":["Date"],"path.modules.65.updatedAt":["Date"],"path.modules.66.createdAt":["Date"],"path.modules.66.updatedAt":["Date"],"path.modules.67.createdAt":["Date"],"path.modules.67.updatedAt":["Date"],"path.modules.68.createdAt":["Date"],"path.modules.68.updatedAt":["Date"],"path.modules.69.createdAt":["Date"],"path.modules.69.updatedAt":["Date"],"path.modules.70.createdAt":["Date"],"path.modules.70.updatedAt":["Date"],"path.modules.71.createdAt":["Date"],"path.modules.71.updatedAt":["Date"],"path.modules.72.createdAt":["Date"],"path.modules.72.updatedAt":["Date"],"path.modules.73.createdAt":["Date"],"path.modules.73.updatedAt":["Date"],"path.modules.74.createdAt":["Date"],"path.modules.74.updatedAt":["Date"],"path.modules.75.createdAt":["Date"],"path.modules.75.updatedAt":["Date"],"path.modules.76.createdAt":["Date"],"path.modules.76.updatedAt":["Date"],"path.modules.77.createdAt":["Date"],"path.modules.77.updatedAt":["Date"],"path.modules.78.createdAt":["Date"],"path.modules.78.updatedAt":["Date"],"path.modules.79.createdAt":["Date"],"path.modules.79.updatedAt":["Date"],"path.modules.80.createdAt":["Date"],"path.modules.80.updatedAt":["Date"],"path.modules.81.createdAt":["Date"],"path.modules.81.updatedAt":["Date"],"path.modules.82.createdAt":["Date"],"path.modules.82.updatedAt":["Date"],"path.modules.83.createdAt":["Date"],"path.modules.83.updatedAt":["Date"],"path.modules.84.createdAt":["Date"],"path.modules.84.updatedAt":["Date"],"path.modules.85.createdAt":["Date"],"path.modules.85.updatedAt":["Date"],"path.modules.86.createdAt":["Date"],"path.modules.86.updatedAt":["Date"],"path.modules.87.createdAt":["Date"],"path.modules.87.updatedAt":["Date"],"path.modules.88.createdAt":["Date"],"path.modules.88.updatedAt":["Date"],"path.modules.89.createdAt":["Date"],"path.modules.89.updatedAt":["Date"],"path.modules.90.createdAt":["Date"],"path.modules.90.updatedAt":["Date"],"path.modules.91.createdAt":["Date"],"path.modules.91.updatedAt":["Date"],"path.modules.92.createdAt":["Date"],"path.modules.92.updatedAt":["Date"],"path.modules.93.createdAt":["Date"],"path.modules.93.updatedAt":["Date"],"path.modules.94.createdAt":["Date"],"path.modules.94.updatedAt":["Date"],"path.modules.95.createdAt":["Date"],"path.modules.95.updatedAt":["Date"],"path.modules.96.createdAt":["Date"],"path.modules.96.updatedAt":["Date"],"path.modules.97.createdAt":["Date"],"path.modules.97.updatedAt":["Date"],"path.modules.98.createdAt":["Date"],"path.modules.98.updatedAt":["Date"],"path.modules.99.createdAt":["Date"],"path.modules.99.updatedAt":["Date"],"path.modules.100.createdAt":["Date"],"path.modules.100.updatedAt":["Date"],"path.modules.101.createdAt":["Date"],"path.modules.101.updatedAt":["Date"],"path.modules.102.createdAt":["Date"],"path.modules.102.updatedAt":["Date"],"path.modules.103.createdAt":["Date"],"path.modules.103.updatedAt":["Date"],"path.modules.104.createdAt":["Date"],"path.modules.104.updatedAt":["Date"],"path.modules.105.createdAt":["Date"],"path.modules.105.updatedAt":["Date"],"path.modules.106.createdAt":["Date"],"path.modules.106.updatedAt":["Date"],"path.modules.107.createdAt":["Date"],"path.modules.107.updatedAt":["Date"],"path.modules.108.createdAt":["Date"],"path.modules.108.updatedAt":["Date"],"path.modules.109.createdAt":["Date"],"path.modules.109.updatedAt":["Date"],"path.modules.110.createdAt":["Date"],"path.modules.110.updatedAt":["Date"],"path.modules.111.createdAt":["Date"],"path.modules.111.updatedAt":["Date"],"path.modules.112.createdAt":["Date"],"path.modules.112.updatedAt":["Date"],"path.modules.113.createdAt":["Date"],"path.modules.113.updatedAt":["Date"],"path.modules.114.createdAt":["Date"],"path.modules.114.updatedAt":["Date"],"path.modules.115.createdAt":["Date"],"path.modules.115.updatedAt":["Date"],"path.modules.116.createdAt":["Date"],"path.modules.116.updatedAt":["Date"],"path.modules.117.createdAt":["Date"],"path.modules.117.updatedAt":["Date"],"path.modules.118.createdAt":["Date"],"path.modules.118.updatedAt":["Date"],"path.modules.119.createdAt":["Date"],"path.modules.119.updatedAt":["Date"],"path.modules.120.createdAt":["Date"],"path.modules.120.updatedAt":["Date"],"path.modules.121.createdAt":["Date"],"path.modules.121.updatedAt":["Date"],"path.modules.122.createdAt":["Date"],"path.modules.122.updatedAt":["Date"],"path.modules.123.createdAt":["Date"],"path.modules.123.updatedAt":["Date"],"path.modules.124.createdAt":["Date"],"path.modules.124.updatedAt":["Date"],"path.modules.125.createdAt":["Date"],"path.modules.125.updatedAt":["Date"],"path.modules.126.createdAt":["Date"],"path.modules.126.updatedAt":["Date"],"path.modules.127.createdAt":["Date"],"path.modules.127.updatedAt":["Date"],"path.modules.128.createdAt":["Date"],"path.modules.128.updatedAt":["Date"],"path.modules.129.createdAt":["Date"],"path.modules.129.updatedAt":["Date"],"path.modules.130.createdAt":["Date"],"path.modules.130.updatedAt":["Date"],"path.modules.131.createdAt":["Date"],"path.modules.131.updatedAt":["Date"],"path.modules.132.createdAt":["Date"],"path.modules.132.updatedAt":["Date"],"path.modules.133.createdAt":["Date"],"path.modules.133.updatedAt":["Date"],"path.modules.134.createdAt":["Date"],"path.modules.134.updatedAt":["Date"],"path.modules.135.createdAt":["Date"],"path.modules.135.updatedAt":["Date"],"path.modules.136.createdAt":["Date"],"path.modules.136.updatedAt":["Date"],"path.modules.137.createdAt":["Date"],"path.modules.137.updatedAt":["Date"],"path.modules.138.createdAt":["Date"],"path.modules.138.updatedAt":["Date"],"path.modules.139.createdAt":["Date"],"path.modules.139.updatedAt":["Date"],"path.modules.140.createdAt":["Date"],"path.modules.140.updatedAt":["Date"],"path.modules.141.createdAt":["Date"],"path.modules.141.updatedAt":["Date"],"path.modules.142.createdAt":["Date"],"path.modules.142.updatedAt":["Date"],"path.modules.143.createdAt":["Date"],"path.modules.143.updatedAt":["Date"],"path.modules.144.createdAt":["Date"],"path.modules.144.updatedAt":["Date"],"path.modules.145.createdAt":["Date"],"path.modules.145.updatedAt":["Date"],"path.modules.146.createdAt":["Date"],"path.modules.146.updatedAt":["Date"],"path.modules.147.createdAt":["Date"],"path.modules.147.updatedAt":["Date"],"path.modules.148.createdAt":["Date"],"path.modules.148.updatedAt":["Date"],"path.modules.149.createdAt":["Date"],"path.modules.149.updatedAt":["Date"],"path.modules.150.createdAt":["Date"],"path.modules.150.updatedAt":["Date"],"path.modules.151.createdAt":["Date"],"path.modules.151.updatedAt":["Date"],"path.modules.152.createdAt":["Date"],"path.modules.152.updatedAt":["Date"],"path.modules.153.createdAt":["Date"],"path.modules.153.updatedAt":["Date"],"path.modules.154.createdAt":["Date"],"path.modules.154.updatedAt":["Date"],"path.modules.155.createdAt":["Date"],"path.modules.155.updatedAt":["Date"],"path.modules.156.createdAt":["Date"],"path.modules.156.updatedAt":["Date"],"path.modules.157.createdAt":["Date"],"path.modules.157.updatedAt":["Date"],"path.modules.158.createdAt":["Date"],"path.modules.158.updatedAt":["Date"],"path.modules.159.createdAt":["Date"],"path.modules.159.updatedAt":["Date"],"path.modules.160.createdAt":["Date"],"path.modules.160.updatedAt":["Date"],"path.modules.161.createdAt":["Date"],"path.modules.161.updatedAt":["Date"],"path.modules.162.createdAt":["Date"],"path.modules.162.updatedAt":["Date"],"path.modules.163.createdAt":["Date"],"path.modules.163.updatedAt":["Date"],"path.modules.164.createdAt":["Date"],"path.modules.164.updatedAt":["Date"],"path.modules.165.createdAt":["Date"],"path.modules.165.updatedAt":["Date"],"path.modules.166.createdAt":["Date"],"path.modules.166.updatedAt":["Date"],"path.modules.167.createdAt":["Date"],"path.modules.167.updatedAt":["Date"],"path.modules.168.createdAt":["Date"],"path.modules.168.updatedAt":["Date"],"path.modules.169.createdAt":["Date"],"path.modules.169.updatedAt":["Date"],"path.modules.170.createdAt":["Date"],"path.modules.170.updatedAt":["Date"],"path.modules.171.createdAt":["Date"],"path.modules.171.updatedAt":["Date"],"path.modules.172.createdAt":["Date"],"path.modules.172.updatedAt":["Date"],"path.modules.173.createdAt":["Date"],"path.modules.173.updatedAt":["Date"],"path.modules.174.createdAt":["Date"],"path.modules.174.updatedAt":["Date"],"path.modules.175.createdAt":["Date"],"path.modules.175.updatedAt":["Date"],"path.modules.176.createdAt":["Date"],"path.modules.176.updatedAt":["Date"],"path.modules.177.createdAt":["Date"],"path.modules.177.updatedAt":["Date"],"path.modules.178.createdAt":["Date"],"path.modules.178.updatedAt":["Date"],"path.modules.179.createdAt":["Date"],"path.modules.179.updatedAt":["Date"],"path.modules.180.createdAt":["Date"],"path.modules.180.updatedAt":["Date"],"path.modules.181.createdAt":["Date"],"path.modules.181.updatedAt":["Date"],"path.modules.182.createdAt":["Date"],"path.modules.182.updatedAt":["Date"],"path.modules.183.createdAt":["Date"],"path.modules.183.updatedAt":["Date"],"path.modules.184.createdAt":["Date"],"path.modules.184.updatedAt":["Date"],"path.modules.185.createdAt":["Date"],"path.modules.185.updatedAt":["Date"],"path.modules.186.createdAt":["Date"],"path.modules.186.updatedAt":["Date"],"path.modules.187.createdAt":["Date"],"path.modules.187.updatedAt":["Date"],"path.modules.188.createdAt":["Date"],"path.modules.188.updatedAt":["Date"],"path.modules.189.createdAt":["Date"],"path.modules.189.updatedAt":["Date"],"path.modules.190.createdAt":["Date"],"path.modules.190.updatedAt":["Date"],"path.modules.191.createdAt":["Date"],"path.modules.191.updatedAt":["Date"],"path.modules.192.createdAt":["Date"],"path.modules.192.updatedAt":["Date"],"path.modules.193.createdAt":["Date"],"path.modules.193.updatedAt":["Date"],"path.modules.194.createdAt":["Date"],"path.modules.194.updatedAt":["Date"],"path.modules.195.createdAt":["Date"],"path.modules.195.updatedAt":["Date"],"path.modules.196.createdAt":["Date"],"path.modules.196.updatedAt":["Date"],"path.modules.197.createdAt":["Date"],"path.modules.197.updatedAt":["Date"],"path.modules.198.createdAt":["Date"],"path.modules.198.updatedAt":["Date"],"path.modules.199.createdAt":["Date"],"path.modules.199.updatedAt":["Date"],"path.modules.200.createdAt":["Date"],"path.modules.200.updatedAt":["Date"],"path.modules.201.createdAt":["Date"],"path.modules.201.updatedAt":["Date"],"path.modules.202.createdAt":["Date"],"path.modules.202.updatedAt":["Date"],"path.modules.203.createdAt":["Date"],"path.modules.203.updatedAt":["Date"],"path.modules.204.createdAt":["Date"],"path.modules.204.updatedAt":["Date"],"path.modules.205.createdAt":["Date"],"path.modules.205.updatedAt":["Date"],"path.modules.206.createdAt":["Date"],"path.modules.206.updatedAt":["Date"],"path.modules.207.createdAt":["Date"],"path.modules.207.updatedAt":["Date"],"path.modules.208.createdAt":["Date"],"path.modules.208.updatedAt":["Date"],"path.modules.209.createdAt":["Date"],"path.modules.209.updatedAt":["Date"],"path.modules.210.createdAt":["Date"],"path.modules.210.updatedAt":["Date"],"path.modules.211.createdAt":["Date"],"path.modules.211.updatedAt":["Date"],"path.modules.212.createdAt":["Date"],"path.modules.212.updatedAt":["Date"],"path.modules.213.createdAt":["Date"],"path.modules.213.updatedAt":["Date"],"path.modules.214.createdAt":["Date"],"path.modules.214.updatedAt":["Date"],"path.modules.215.createdAt":["Date"],"path.modules.215.updatedAt":["Date"],"path.modules.216.createdAt":["Date"],"path.modules.216.updatedAt":["Date"],"path.modules.217.createdAt":["Date"],"path.modules.217.updatedAt":["Date"],"path.modules.218.createdAt":["Date"],"path.modules.218.updatedAt":["Date"],"path.modules.219.createdAt":["Date"],"path.modules.219.updatedAt":["Date"],"path.modules.220.createdAt":["Date"],"path.modules.220.updatedAt":["Date"],"path.modules.221.createdAt":["Date"],"path.modules.221.updatedAt":["Date"],"path.modules.222.createdAt":["Date"],"path.modules.222.updatedAt":["Date"],"path.modules.223.createdAt":["Date"],"path.modules.223.updatedAt":["Date"],"path.modules.224.createdAt":["Date"],"path.modules.224.updatedAt":["Date"],"path.modules.225.createdAt":["Date"],"path.modules.225.updatedAt":["Date"],"path.modules.226.createdAt":["Date"],"path.modules.226.updatedAt":["Date"],"path.modules.227.createdAt":["Date"],"path.modules.227.updatedAt":["Date"],"path.modules.228.createdAt":["Date"],"path.modules.228.updatedAt":["Date"],"path.modules.229.createdAt":["Date"],"path.modules.229.updatedAt":["Date"],"path.modules.230.createdAt":["Date"],"path.modules.230.updatedAt":["Date"],"path.modules.231.createdAt":["Date"],"path.modules.231.updatedAt":["Date"],"path.modules.232.createdAt":["Date"],"path.modules.232.updatedAt":["Date"],"path.modules.233.createdAt":["Date"],"path.modules.233.updatedAt":["Date"],"path.modules.234.createdAt":["Date"],"path.modules.234.updatedAt":["Date"],"path.modules.235.createdAt":["Date"],"path.modules.235.updatedAt":["Date"],"path.modules.236.createdAt":["Date"],"path.modules.236.updatedAt":["Date"],"path.modules.237.createdAt":["Date"],"path.modules.237.updatedAt":["Date"],"path.modules.238.createdAt":["Date"],"path.modules.238.updatedAt":["Date"],"path.modules.239.createdAt":["Date"],"path.modules.239.updatedAt":["Date"],"path.modules.240.createdAt":["Date"],"path.modules.240.updatedAt":["Date"],"path.modules.241.createdAt":["Date"],"path.modules.241.updatedAt":["Date"],"path.modules.242.createdAt":["Date"],"path.modules.242.updatedAt":["Date"],"path.modules.243.createdAt":["Date"],"path.modules.243.updatedAt":["Date"],"path.modules.244.createdAt":["Date"],"path.modules.244.updatedAt":["Date"],"path.modules.245.createdAt":["Date"],"path.modules.245.updatedAt":["Date"],"path.modules.246.createdAt":["Date"],"path.modules.246.updatedAt":["Date"],"path.modules.247.createdAt":["Date"],"path.modules.247.updatedAt":["Date"],"path.modules.248.createdAt":["Date"],"path.modules.248.updatedAt":["Date"],"path.modules.249.createdAt":["Date"],"path.modules.249.updatedAt":["Date"],"path.modules.250.createdAt":["Date"],"path.modules.250.updatedAt":["Date"],"path.modules.251.createdAt":["Date"],"path.modules.251.updatedAt":["Date"],"path.modules.252.createdAt":["Date"],"path.modules.252.updatedAt":["Date"],"path.modules.253.createdAt":["Date"],"path.modules.253.updatedAt":["Date"],"path.modules.254.createdAt":["Date"],"path.modules.254.updatedAt":["Date"],"path.modules.255.createdAt":["Date"],"path.modules.255.updatedAt":["Date"],"path.modules.256.createdAt":["Date"],"path.modules.256.updatedAt":["Date"],"path.modules.257.createdAt":["Date"],"path.modules.257.updatedAt":["Date"],"path.modules.258.createdAt":["Date"],"path.modules.258.updatedAt":["Date"],"path.modules.259.createdAt":["Date"],"path.modules.259.updatedAt":["Date"],"path.modules.260.createdAt":["Date"],"path.modules.260.updatedAt":["Date"],"path.modules.261.createdAt":["Date"],"path.modules.261.updatedAt":["Date"],"path.modules.262.createdAt":["Date"],"path.modules.262.updatedAt":["Date"],"path.modules.263.createdAt":["Date"],"path.modules.263.updatedAt":["Date"],"path.modules.264.createdAt":["Date"],"path.modules.264.updatedAt":["Date"],"path.modules.265.createdAt":["Date"],"path.modules.265.updatedAt":["Date"],"path.modules.266.createdAt":["Date"],"path.modules.266.updatedAt":["Date"],"path.modules.267.createdAt":["Date"],"path.modules.267.updatedAt":["Date"],"path.modules.268.createdAt":["Date"],"path.modules.268.updatedAt":["Date"],"path.modules.269.createdAt":["Date"],"path.modules.269.updatedAt":["Date"],"path.modules.270.createdAt":["Date"],"path.modules.270.updatedAt":["Date"],"path.modules.271.createdAt":["Date"],"path.modules.271.updatedAt":["Date"],"path.modules.272.createdAt":["Date"],"path.modules.272.updatedAt":["Date"],"path.modules.273.createdAt":["Date"],"path.modules.273.updatedAt":["Date"],"path.modules.274.createdAt":["Date"],"path.modules.274.updatedAt":["Date"],"path.modules.275.createdAt":["Date"],"path.modules.275.updatedAt":["Date"],"path.modules.276.createdAt":["Date"],"path.modules.276.updatedAt":["Date"],"path.modules.277.createdAt":["Date"],"path.modules.277.updatedAt":["Date"],"path.modules.278.createdAt":["Date"],"path.modules.278.updatedAt":["Date"],"path.modules.279.createdAt":["Date"],"path.modules.279.updatedAt":["Date"],"path.modules.280.createdAt":["Date"],"path.modules.280.updatedAt":["Date"],"path.modules.281.createdAt":["Date"],"path.modules.281.updatedAt":["Date"],"path.modules.282.createdAt":["Date"],"path.modules.282.updatedAt":["Date"],"path.modules.283.createdAt":["Date"],"path.modules.283.updatedAt":["Date"],"path.modules.284.createdAt":["Date"],"path.modules.284.updatedAt":["Date"],"path.modules.285.createdAt":["Date"],"path.modules.285.updatedAt":["Date"],"path.modules.286.createdAt":["Date"],"path.modules.286.updatedAt":["Date"],"path.modules.287.createdAt":["Date"],"path.modules.287.updatedAt":["Date"],"path.modules.288.createdAt":["Date"],"path.modules.288.updatedAt":["Date"],"path.modules.289.createdAt":["Date"],"path.modules.289.updatedAt":["Date"],"currentModule.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.78.createdAt","currentModule.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.78.updatedAt","prevModule.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.77.createdAt","prevModule.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.77.updatedAt","nextModule.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.79.createdAt","nextModule.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.79.updatedAt","allModules.0.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.0.createdAt","allModules.0.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.0.updatedAt","allModules.1.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.1.createdAt","allModules.1.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.1.updatedAt","allModules.2.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.2.createdAt","allModules.2.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.2.updatedAt","allModules.3.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.3.createdAt","allModules.3.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.3.updatedAt","allModules.4.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.4.createdAt","allModules.4.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.4.updatedAt","allModules.5.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.5.createdAt","allModules.5.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.5.updatedAt","allModules.6.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.6.createdAt","allModules.6.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.6.updatedAt","allModules.7.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.7.createdAt","allModules.7.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.7.updatedAt","allModules.8.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.8.createdAt","allModules.8.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.8.updatedAt","allModules.9.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.9.createdAt","allModules.9.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.9.updatedAt","allModules.10.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.10.createdAt","allModules.10.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.10.updatedAt","allModules.11.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.11.createdAt","allModules.11.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.11.updatedAt","allModules.12.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.12.createdAt","allModules.12.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.12.updatedAt","allModules.13.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.13.createdAt","allModules.13.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.13.updatedAt","allModules.14.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.14.createdAt","allModules.14.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.14.updatedAt","allModules.15.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.15.createdAt","allModules.15.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.15.updatedAt","allModules.16.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.16.createdAt","allModules.16.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.16.updatedAt","allModules.17.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.17.createdAt","allModules.17.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.17.updatedAt","allModules.18.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.18.createdAt","allModules.18.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.18.updatedAt","allModules.19.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.19.createdAt","allModules.19.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.19.updatedAt","allModules.20.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.20.createdAt","allModules.20.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.20.updatedAt","allModules.21.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.21.createdAt","allModules.21.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.21.updatedAt","allModules.22.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.22.createdAt","allModules.22.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.22.updatedAt","allModules.23.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.23.createdAt","allModules.23.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.23.updatedAt","allModules.24.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.24.createdAt","allModules.24.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.24.updatedAt","allModules.25.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.25.createdAt","allModules.25.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.25.updatedAt","allModules.26.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.26.createdAt","allModules.26.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.26.updatedAt","allModules.27.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.27.createdAt","allModules.27.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.27.updatedAt","allModules.28.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.28.createdAt","allModules.28.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.28.updatedAt","allModules.29.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.29.createdAt","allModules.29.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.29.updatedAt","allModules.30.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.30.createdAt","allModules.30.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.30.updatedAt","allModules.31.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.31.createdAt","allModules.31.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.31.updatedAt","allModules.32.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.32.createdAt","allModules.32.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.32.updatedAt","allModules.33.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.33.createdAt","allModules.33.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.33.updatedAt","allModules.34.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.34.createdAt","allModules.34.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.34.updatedAt","allModules.35.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.35.createdAt","allModules.35.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.35.updatedAt","allModules.36.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.36.createdAt","allModules.36.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.36.updatedAt","allModules.37.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.37.createdAt","allModules.37.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.37.updatedAt","allModules.38.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.38.createdAt","allModules.38.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.38.updatedAt","allModules.39.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.39.createdAt","allModules.39.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.39.updatedAt","allModules.40.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.40.createdAt","allModules.40.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.40.updatedAt","allModules.41.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.41.createdAt","allModules.41.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.41.updatedAt","allModules.42.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.42.createdAt","allModules.42.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.42.updatedAt","allModules.43.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.43.createdAt","allModules.43.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.43.updatedAt","allModules.44.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.44.createdAt","allModules.44.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.44.updatedAt","allModules.45.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.45.createdAt","allModules.45.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.45.updatedAt","allModules.46.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.46.createdAt","allModules.46.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.46.updatedAt","allModules.47.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.47.createdAt","allModules.47.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.47.updatedAt","allModules.48.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.48.createdAt","allModules.48.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.48.updatedAt","allModules.49.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.49.createdAt","allModules.49.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.49.updatedAt","allModules.50.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.50.createdAt","allModules.50.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.50.updatedAt","allModules.51.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.51.createdAt","allModules.51.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.51.updatedAt","allModules.52.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.52.createdAt","allModules.52.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.52.updatedAt","allModules.53.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.53.createdAt","allModules.53.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.53.updatedAt","allModules.54.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.54.createdAt","allModules.54.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.54.updatedAt","allModules.55.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.55.createdAt","allModules.55.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.55.updatedAt","allModules.56.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.56.createdAt","allModules.56.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.56.updatedAt","allModules.57.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.57.createdAt","allModules.57.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.57.updatedAt","allModules.58.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.58.createdAt","allModules.58.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.58.updatedAt","allModules.59.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.59.createdAt","allModules.59.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.59.updatedAt","allModules.60.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.60.createdAt","allModules.60.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.60.updatedAt","allModules.61.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.61.createdAt","allModules.61.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.61.updatedAt","allModules.62.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.62.createdAt","allModules.62.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.62.updatedAt","allModules.63.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.63.createdAt","allModules.63.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.63.updatedAt","allModules.64.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.64.createdAt","allModules.64.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.64.updatedAt","allModules.65.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.65.createdAt","allModules.65.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.65.updatedAt","allModules.66.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.66.createdAt","allModules.66.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.66.updatedAt","allModules.67.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.67.createdAt","allModules.67.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.67.updatedAt","allModules.68.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.68.createdAt","allModules.68.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.68.updatedAt","allModules.69.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.69.createdAt","allModules.69.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.69.updatedAt","allModules.70.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.70.createdAt","allModules.70.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.70.updatedAt","allModules.71.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.71.createdAt","allModules.71.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.71.updatedAt","allModules.72.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.72.createdAt","allModules.72.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.72.updatedAt","allModules.73.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.73.createdAt","allModules.73.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.73.updatedAt","allModules.74.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.74.createdAt","allModules.74.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.74.updatedAt","allModules.75.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.75.createdAt","allModules.75.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.75.updatedAt","allModules.76.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.76.createdAt","allModules.76.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.76.updatedAt","allModules.77.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.77.createdAt","allModules.77.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.77.updatedAt","allModules.78.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.78.createdAt","allModules.78.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.78.updatedAt","allModules.79.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.79.createdAt","allModules.79.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.79.updatedAt","allModules.80.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.80.createdAt","allModules.80.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.80.updatedAt","allModules.81.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.81.createdAt","allModules.81.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.81.updatedAt","allModules.82.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.82.createdAt","allModules.82.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.82.updatedAt","allModules.83.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.83.createdAt","allModules.83.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.83.updatedAt","allModules.84.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.84.createdAt","allModules.84.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.84.updatedAt","allModules.85.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.85.createdAt","allModules.85.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.85.updatedAt","allModules.86.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.86.createdAt","allModules.86.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.86.updatedAt","allModules.87.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.87.createdAt","allModules.87.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.87.updatedAt","allModules.88.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.88.createdAt","allModules.88.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.88.updatedAt","allModules.89.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.89.createdAt","allModules.89.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.89.updatedAt","allModules.90.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.90.createdAt","allModules.90.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.90.updatedAt","allModules.91.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.91.createdAt","allModules.91.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.91.updatedAt","allModules.92.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.92.createdAt","allModules.92.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.92.updatedAt","allModules.93.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.93.createdAt","allModules.93.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.93.updatedAt","allModules.94.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.94.createdAt","allModules.94.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.94.updatedAt","allModules.95.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.95.createdAt","allModules.95.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.95.updatedAt","allModules.96.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.96.createdAt","allModules.96.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.96.updatedAt","allModules.97.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.97.createdAt","allModules.97.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.97.updatedAt","allModules.98.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.98.createdAt","allModules.98.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.98.updatedAt","allModules.99.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.99.createdAt","allModules.99.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.99.updatedAt","allModules.100.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.100.createdAt","allModules.100.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.100.updatedAt","allModules.101.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.101.createdAt","allModules.101.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.101.updatedAt","allModules.102.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.102.createdAt","allModules.102.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.102.updatedAt","allModules.103.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.103.createdAt","allModules.103.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.103.updatedAt","allModules.104.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.104.createdAt","allModules.104.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.104.updatedAt","allModules.105.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.105.createdAt","allModules.105.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.105.updatedAt","allModules.106.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.106.createdAt","allModules.106.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.106.updatedAt","allModules.107.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.107.createdAt","allModules.107.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.107.updatedAt","allModules.108.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.108.createdAt","allModules.108.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.108.updatedAt","allModules.109.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.109.createdAt","allModules.109.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.109.updatedAt","allModules.110.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.110.createdAt","allModules.110.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.110.updatedAt","allModules.111.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.111.createdAt","allModules.111.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.111.updatedAt","allModules.112.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.112.createdAt","allModules.112.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.112.updatedAt","allModules.113.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.113.createdAt","allModules.113.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.113.updatedAt","allModules.114.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.114.createdAt","allModules.114.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.114.updatedAt","allModules.115.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.115.createdAt","allModules.115.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.115.updatedAt","allModules.116.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.116.createdAt","allModules.116.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.116.updatedAt","allModules.117.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.117.createdAt","allModules.117.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.117.updatedAt","allModules.118.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.118.createdAt","allModules.118.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.118.updatedAt","allModules.119.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.119.createdAt","allModules.119.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.119.updatedAt","allModules.120.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.120.createdAt","allModules.120.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.120.updatedAt","allModules.121.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.121.createdAt","allModules.121.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.121.updatedAt","allModules.122.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.122.createdAt","allModules.122.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.122.updatedAt","allModules.123.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.123.createdAt","allModules.123.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.123.updatedAt","allModules.124.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.124.createdAt","allModules.124.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.124.updatedAt","allModules.125.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.125.createdAt","allModules.125.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.125.updatedAt","allModules.126.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.126.createdAt","allModules.126.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.126.updatedAt","allModules.127.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.127.createdAt","allModules.127.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.127.updatedAt","allModules.128.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.128.createdAt","allModules.128.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.128.updatedAt","allModules.129.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.129.createdAt","allModules.129.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.129.updatedAt","allModules.130.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.130.createdAt","allModules.130.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.130.updatedAt","allModules.131.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.131.createdAt","allModules.131.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.131.updatedAt","allModules.132.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.132.createdAt","allModules.132.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.132.updatedAt","allModules.133.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.133.createdAt","allModules.133.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.133.updatedAt","allModules.134.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.134.createdAt","allModules.134.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.134.updatedAt","allModules.135.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.135.createdAt","allModules.135.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.135.updatedAt","allModules.136.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.136.createdAt","allModules.136.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.136.updatedAt","allModules.137.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.137.createdAt","allModules.137.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.137.updatedAt","allModules.138.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.138.createdAt","allModules.138.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.138.updatedAt","allModules.139.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.139.createdAt","allModules.139.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.139.updatedAt","allModules.140.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.140.createdAt","allModules.140.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.140.updatedAt","allModules.141.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.141.createdAt","allModules.141.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.141.updatedAt","allModules.142.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.142.createdAt","allModules.142.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.142.updatedAt","allModules.143.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.143.createdAt","allModules.143.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.143.updatedAt","allModules.144.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.144.createdAt","allModules.144.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.144.updatedAt","allModules.145.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.145.createdAt","allModules.145.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.145.updatedAt","allModules.146.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.146.createdAt","allModules.146.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.146.updatedAt","allModules.147.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.147.createdAt","allModules.147.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.147.updatedAt","allModules.148.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.148.createdAt","allModules.148.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.148.updatedAt","allModules.149.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.149.createdAt","allModules.149.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.149.updatedAt","allModules.150.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.150.createdAt","allModules.150.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.150.updatedAt","allModules.151.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.151.createdAt","allModules.151.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.151.updatedAt","allModules.152.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.152.createdAt","allModules.152.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.152.updatedAt","allModules.153.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.153.createdAt","allModules.153.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.153.updatedAt","allModules.154.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.154.createdAt","allModules.154.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.154.updatedAt","allModules.155.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.155.createdAt","allModules.155.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.155.updatedAt","allModules.156.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.156.createdAt","allModules.156.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.156.updatedAt","allModules.157.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.157.createdAt","allModules.157.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.157.updatedAt","allModules.158.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.158.createdAt","allModules.158.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.158.updatedAt","allModules.159.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.159.createdAt","allModules.159.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.159.updatedAt","allModules.160.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.160.createdAt","allModules.160.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.160.updatedAt","allModules.161.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.161.createdAt","allModules.161.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.161.updatedAt","allModules.162.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.162.createdAt","allModules.162.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.162.updatedAt","allModules.163.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.163.createdAt","allModules.163.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.163.updatedAt","allModules.164.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.164.createdAt","allModules.164.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.164.updatedAt","allModules.165.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.165.createdAt","allModules.165.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.165.updatedAt","allModules.166.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.166.createdAt","allModules.166.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.166.updatedAt","allModules.167.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.167.createdAt","allModules.167.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.167.updatedAt","allModules.168.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.168.createdAt","allModules.168.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.168.updatedAt","allModules.169.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.169.createdAt","allModules.169.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.169.updatedAt","allModules.170.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.170.createdAt","allModules.170.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.170.updatedAt","allModules.171.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.171.createdAt","allModules.171.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.171.updatedAt","allModules.172.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.172.createdAt","allModules.172.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.172.updatedAt","allModules.173.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.173.createdAt","allModules.173.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.173.updatedAt","allModules.174.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.174.createdAt","allModules.174.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.174.updatedAt","allModules.175.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.175.createdAt","allModules.175.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.175.updatedAt","allModules.176.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.176.createdAt","allModules.176.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.176.updatedAt","allModules.177.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.177.createdAt","allModules.177.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.177.updatedAt","allModules.178.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.178.createdAt","allModules.178.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.178.updatedAt","allModules.179.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.179.createdAt","allModules.179.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.179.updatedAt","allModules.180.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.180.createdAt","allModules.180.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.180.updatedAt","allModules.181.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.181.createdAt","allModules.181.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.181.updatedAt","allModules.182.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.182.createdAt","allModules.182.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.182.updatedAt","allModules.183.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.183.createdAt","allModules.183.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.183.updatedAt","allModules.184.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.184.createdAt","allModules.184.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.184.updatedAt","allModules.185.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.185.createdAt","allModules.185.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.185.updatedAt","allModules.186.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.186.createdAt","allModules.186.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.186.updatedAt","allModules.187.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.187.createdAt","allModules.187.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.187.updatedAt","allModules.188.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.188.createdAt","allModules.188.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.188.updatedAt","allModules.189.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.189.createdAt","allModules.189.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.189.updatedAt","allModules.190.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.190.createdAt","allModules.190.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.190.updatedAt","allModules.191.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.191.createdAt","allModules.191.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.191.updatedAt","allModules.192.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.192.createdAt","allModules.192.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.192.updatedAt","allModules.193.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.193.createdAt","allModules.193.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.193.updatedAt","allModules.194.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.194.createdAt","allModules.194.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.194.updatedAt","allModules.195.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.195.createdAt","allModules.195.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.195.updatedAt","allModules.196.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.196.createdAt","allModules.196.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.196.updatedAt","allModules.197.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.197.createdAt","allModules.197.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.197.updatedAt","allModules.198.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.198.createdAt","allModules.198.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.198.updatedAt","allModules.199.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.199.createdAt","allModules.199.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.199.updatedAt","allModules.200.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.200.createdAt","allModules.200.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.200.updatedAt","allModules.201.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.201.createdAt","allModules.201.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.201.updatedAt","allModules.202.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.202.createdAt","allModules.202.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.202.updatedAt","allModules.203.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.203.createdAt","allModules.203.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.203.updatedAt","allModules.204.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.204.createdAt","allModules.204.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.204.updatedAt","allModules.205.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.205.createdAt","allModules.205.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.205.updatedAt","allModules.206.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.206.createdAt","allModules.206.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.206.updatedAt","allModules.207.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.207.createdAt","allModules.207.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.207.updatedAt","allModules.208.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.208.createdAt","allModules.208.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.208.updatedAt","allModules.209.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.209.createdAt","allModules.209.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.209.updatedAt","allModules.210.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.210.createdAt","allModules.210.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.210.updatedAt","allModules.211.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.211.createdAt","allModules.211.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.211.updatedAt","allModules.212.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.212.createdAt","allModules.212.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.212.updatedAt","allModules.213.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.213.createdAt","allModules.213.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.213.updatedAt","allModules.214.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.214.createdAt","allModules.214.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.214.updatedAt","allModules.215.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.215.createdAt","allModules.215.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.215.updatedAt","allModules.216.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.216.createdAt","allModules.216.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.216.updatedAt","allModules.217.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.217.createdAt","allModules.217.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.217.updatedAt","allModules.218.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.218.createdAt","allModules.218.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.218.updatedAt","allModules.219.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.219.createdAt","allModules.219.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.219.updatedAt","allModules.220.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.220.createdAt","allModules.220.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.220.updatedAt","allModules.221.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.221.createdAt","allModules.221.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.221.updatedAt","allModules.222.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.222.createdAt","allModules.222.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.222.updatedAt","allModules.223.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.223.createdAt","allModules.223.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.223.updatedAt","allModules.224.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.224.createdAt","allModules.224.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.224.updatedAt","allModules.225.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.225.createdAt","allModules.225.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.225.updatedAt","allModules.226.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.226.createdAt","allModules.226.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.226.updatedAt","allModules.227.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.227.createdAt","allModules.227.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.227.updatedAt","allModules.228.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.228.createdAt","allModules.228.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.228.updatedAt","allModules.229.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.229.createdAt","allModules.229.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.229.updatedAt","allModules.230.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.230.createdAt","allModules.230.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.230.updatedAt","allModules.231.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.231.createdAt","allModules.231.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.231.updatedAt","allModules.232.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.232.createdAt","allModules.232.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.232.updatedAt","allModules.233.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.233.createdAt","allModules.233.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.233.updatedAt","allModules.234.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.234.createdAt","allModules.234.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.234.updatedAt","allModules.235.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.235.createdAt","allModules.235.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.235.updatedAt","allModules.236.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.236.createdAt","allModules.236.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.236.updatedAt","allModules.237.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.237.createdAt","allModules.237.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.237.updatedAt","allModules.238.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.238.createdAt","allModules.238.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.238.updatedAt","allModules.239.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.239.createdAt","allModules.239.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.239.updatedAt","allModules.240.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.240.createdAt","allModules.240.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.240.updatedAt","allModules.241.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.241.createdAt","allModules.241.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.241.updatedAt","allModules.242.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.242.createdAt","allModules.242.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.242.updatedAt","allModules.243.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.243.createdAt","allModules.243.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.243.updatedAt","allModules.244.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.244.createdAt","allModules.244.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.244.updatedAt","allModules.245.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.245.createdAt","allModules.245.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.245.updatedAt","allModules.246.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.246.createdAt","allModules.246.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.246.updatedAt","allModules.247.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.247.createdAt","allModules.247.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.247.updatedAt","allModules.248.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.248.createdAt","allModules.248.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.248.updatedAt","allModules.249.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.249.createdAt","allModules.249.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.249.updatedAt","allModules.250.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.250.createdAt","allModules.250.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.250.updatedAt","allModules.251.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.251.createdAt","allModules.251.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.251.updatedAt","allModules.252.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.252.createdAt","allModules.252.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.252.updatedAt","allModules.253.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.253.createdAt","allModules.253.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.253.updatedAt","allModules.254.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.254.createdAt","allModules.254.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.254.updatedAt","allModules.255.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.255.createdAt","allModules.255.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.255.updatedAt","allModules.256.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.256.createdAt","allModules.256.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.256.updatedAt","allModules.257.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.257.createdAt","allModules.257.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.257.updatedAt","allModules.258.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.258.createdAt","allModules.258.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.258.updatedAt","allModules.259.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.259.createdAt","allModules.259.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.259.updatedAt","allModules.260.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.260.createdAt","allModules.260.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.260.updatedAt","allModules.261.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.261.createdAt","allModules.261.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.261.updatedAt","allModules.262.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.262.createdAt","allModules.262.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.262.updatedAt","allModules.263.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.263.createdAt","allModules.263.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.263.updatedAt","allModules.264.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.264.createdAt","allModules.264.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.264.updatedAt","allModules.265.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.265.createdAt","allModules.265.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.265.updatedAt","allModules.266.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.266.createdAt","allModules.266.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.266.updatedAt","allModules.267.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.267.createdAt","allModules.267.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.267.updatedAt","allModules.268.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.268.createdAt","allModules.268.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.268.updatedAt","allModules.269.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.269.createdAt","allModules.269.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.269.updatedAt","allModules.270.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.270.createdAt","allModules.270.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.270.updatedAt","allModules.271.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.271.createdAt","allModules.271.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.271.updatedAt","allModules.272.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.272.createdAt","allModules.272.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.272.updatedAt","allModules.273.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.273.createdAt","allModules.273.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.273.updatedAt","allModules.274.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.274.createdAt","allModules.274.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.274.updatedAt","allModules.275.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.275.createdAt","allModules.275.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.275.updatedAt","allModules.276.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.276.createdAt","allModules.276.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.276.updatedAt","allModules.277.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.277.createdAt","allModules.277.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.277.updatedAt","allModules.278.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.278.createdAt","allModules.278.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.278.updatedAt","allModules.279.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.279.createdAt","allModules.279.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.279.updatedAt","allModules.280.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.280.createdAt","allModules.280.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.280.updatedAt","allModules.281.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.281.createdAt","allModules.281.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.281.updatedAt","allModules.282.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.282.createdAt","allModules.282.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.282.updatedAt","allModules.283.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.283.createdAt","allModules.283.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.283.updatedAt","allModules.284.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.284.createdAt","allModules.284.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.284.updatedAt","allModules.285.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.285.createdAt","allModules.285.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.285.updatedAt","allModules.286.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.286.createdAt","allModules.286.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.286.updatedAt","allModules.287.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.287.createdAt","allModules.287.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.287.updatedAt","allModules.288.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.288.createdAt","allModules.288.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.288.updatedAt","allModules.289.createdAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.289.createdAt","allModules.289.updatedAt":"$46:props:state:queries:1:state:data:meta:values:path.modules.289.updatedAt"},"referentialEqualities":{"allModules":["path.modules"],"prevModule":["path.modules.77"],"currentModule":["path.modules.78"],"nextModule":["path.modules.79"]},"v":1}},"dataUpdateCount":1,"dataUpdatedAt":1792313539704,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["learningPaths","getModule"],{"input":{"pathSlug":"lld-system-design","contentType":"LEARNING","contentSlug":"invariants-in-inheritance"},"type":"query"}],"queryHash":"[[\"learningPaths\",\"getModule\"],{\"input\":{\"contentSlug\":\"invariants-in-inheritance\",\"contentType\":\"LEARNING\",\"pathSlug\":\"lld-system-design\"},\"type\":\"query\"}]"},{"dehydratedAt":1792313539942,"state":{"data":{"json":{"id":"seed_adf37ed1589a5ff8761a09f512bbda39","slug":"invariants-in-inheritance","category":"System Design (LLD)","topic":"Liskov Substitution Principle","title":"Invariants in Inheritance","description":"Master class invariants—the always-true conditions that define object integrity. Learn how invariants form behavioral contracts, why subclasses must preserve them, and how violations lead to subtle, catastrophic bugs. Understand invariant-safe design for robust inheritance hierarchies.","difficulty":"INTERMEDIATE","estimatedMinutes":75,"pages":[{"id":"seed_ac507b560b331c0b16de24efec026697","title":"Class Invariants - Always-True Conditions","order":0,"content":[{"id":"opening-hook","title":"The Invisible Contract","content":[{"data":{"content":"$72"},"type":"text"},{"data":{"icon":"Target","title":"What You Will Learn","content":"By the end of this page, you will understand what class invariants are, why they're essential for object integrity, how to identify invariants in your designs, and how invariants create implicit contracts that every method must honor. You'll learn to think about objects not just in terms of behavior, but in terms of the guarantees they must maintain.","variant":"info"},"type":"callout"}]},{"id":"what-are-invariants","title":"What Are Class Invariants?","content":[{"data":{"content":"$73"},"type":"text"},{"data":{"rows":[["Precondition","Single method call","The caller","Before the method begins execution"],["Postcondition","Single method call","The method implementation","After the method completes execution"],["Invariant","Object lifetime","Every method in the class","Always, except during method execution"]],"caption":"Invariants vs Preconditions vs Postconditions","headers":["Concept","Scope","Who Ensures It","When It Must Hold"]},"type":"table"},{"data":{"fileName":"invariant-basics","languages":[{"code":"$74","label":"TypeScript","value":"typescript"},{"code":"$75","label":"Python","value":"python"},{"code":"$76","label":"Java","value":"java"}]},"type":"code"},{"data":{"icon":"Lightbulb","title":"The Invariant-Method Relationship","content":"Notice how every method in DateRange is designed with the invariant in mind. Methods either verify that their changes won't violate the invariant (and throw if they would), or they make changes that structurally cannot violate the invariant (like shifting both dates together). This is the discipline invariant thinking requires.","variant":"tip"},"type":"callout"}],"titleType":"number","titleNumber":1},{"id":"types-of-invariants","title":"Types of Class Invariants","content":[{"data":{"content":"Invariants come in various forms, from simple value constraints to complex relationships between multiple fields. Understanding these categories helps you identify and document invariants in your own classes.\n\n**1. Value Constraints (Bounds, Ranges, Allowed Values)**\n\nThese invariants restrict individual fields to specific domains:"},"type":"text"},{"data":{"fileName":"value-constraints","languages":[{"code":"$77","label":"TypeScript","value":"typescript"}]},"type":"code"},{"data":{"content":"**2. Relationship Invariants (Between Fields)**\n\nThese invariants express that multiple fields must maintain a specific relationship:"},"type":"text"},{"data":{"fileName":"relationship-invariants","languages":[{"code":"$78","label":"TypeScript","value":"typescript"}]},"type":"code"},{"data":{"content":"**3. Structural Invariants (Data Structure Integrity)**\n\nThese invariants ensure that internal data structures remain valid:"},"type":"text"},{"data":{"fileName":"structural-invariants","languages":[{"code":"$79","label":"TypeScript","value":"typescript"}]},"type":"code"},{"data":{"content":"**4. Count/Size Invariants (Synchronized Counts)**\n\nThese invariants ensure that size or count fields accurately reflect the actual data:"},"type":"text"},{"data":{"fileName":"count-invariants","languages":[{"code":"$7a","label":"TypeScript","value":"typescript"}]},"type":"code"},{"data":{"icon":"Info","title":"Documenting Invariants","content":"The most important step in working with invariants is making them explicit. Document invariants as comments in your class definition. Future maintainers (including future you) must understand what properties the class guarantees, so they don't accidentally break them when adding new methods.","variant":"note"},"type":"callout"}],"titleType":"number","titleNumber":2},{"id":"why-invariants-matter","title":"Why Invariants Matter","content":[{"data":{"content":"Invariants might seem like additional overhead—extra checks, extra thinking, extra documentation. But they provide profound benefits that compound as systems grow in size and complexity.\n\n**1. Trust and Simplification**\n\nWhen invariants are guaranteed, code can make assumptions without defensive checks:"},"type":"text"},{"data":{"left":[{"data":{"items":["Every method must validate inputs defensively","Callers can't trust returned values","Business logic drowns in validation code","Bugs hide in forgotten edge cases","Code becomes verbose and brittle"],"title":{"icon":"XCircle","text":"Without Invariant Guarantees","type":"icon","color":"destructive","variant":"outline-circle"},"variant":"accent"},"type":"list"}],"right":[{"data":{"items":["Methods assume valid state on entry","Returned objects are always valid","Business logic is clear and focused","Invalid states are prevented by design","Code is concise and robust"],"title":{"icon":"CheckCircle","text":"With Invariant Guarantees","type":"icon","color":"primary","variant":"outline-circle"},"variant":"accent"},"type":"list"}]},"type":"two-column"},{"data":{"fileName":"trust-simplification","languages":[{"code":"$7b","label":"TypeScript","value":"typescript"}]},"type":"code"},{"data":{"content":"**2. Reasoning About Correctness**\n\nInvariants make it possible to reason about program correctness systematically:\n\n- **During code review**: Verify each method maintains invariants\n- **During debugging**: If invariant is violated, you know exactly what broke\n- **During testing**: Tests can verify invariants hold after each operation\n- **During design**: Invariants guide API design and reveal impossible operations\n\n**3. Performance Optimization**\n\nInvariants enable optimizations that would otherwise be unsafe:"},"type":"text"},{"data":{"fileName":"invariant-optimization","languages":[{"code":"$7c","label":"TypeScript","value":"typescript"}]},"type":"code"},{"data":{"icon":"AlertCircle","title":"Breaking Invariants Breaks Optimizations","content":"If any code path allows the SortedArray to become unsorted, every optimization based on the sort invariant fails. Binary search returns wrong results. Min/max become incorrect. Merge produces unsorted output. This is why invariant violations are so dangerous—they silently corrupt behavior across the entire class.","variant":"warning"},"type":"callout"}],"titleType":"number","titleNumber":3},{"id":"invariants-as-contracts","title":"Invariants as Implicit Contracts","content":[{"data":{"content":"Here's a critical insight: **Class invariants create implicit contracts between the class and all code that uses it.**\n\nWhen you define a class with invariants, you're making promises to callers:\n- \"This BankAccount will never have a negative balance\"\n- \"This DateRange will always have start ≤ end\"\n- \"This SortedList will always be in order\"\n\nCallers rely on these promises. They write code that assumes the invariants are true. If you violate the invariants, you break that code—often in subtle, hard-to-detect ways."},"type":"text"},{"data":{"fileName":"implicit-contracts","languages":[{"code":"$7d","label":"TypeScript","value":"typescript"}]},"type":"code"},{"data":{"content":"**The Trust Chain:**\n\nInvariants create a chain of trust throughout your codebase:\n\n1. **Class guarantees invariant** → Methods ensure invariants hold after every operation\n2. **Methods rely on invariant** → Internal implementation doesn't re-check what's guaranteed\n3. **Callers rely on invariant** → External code trusts the class promises\n4. **Downstream relies on caller** → Systems built on top trust their building blocks\n\nIf any link in this chain breaks—if any method fails to maintain the invariant—the corruption propagates through the entire chain. Code that was correct becomes incorrect, not because it changed, but because something it trusted broke its promise."},"type":"text"},{"data":{"icon":"Lightbulb","title":"Make Invariants Unbreakable","content":"The best way to maintain invariants is to make them impossible to break. Use private fields with controlled accessors. Validate at construction time. Make objects immutable where possible. The goal is to structure your class so that no sequence of method calls can ever create an invalid state.","variant":"tip"},"type":"callout"},{"data":{"rows":[["Private fields only","External code cannot directly modify state","Always - default approach"],["Validate in constructor","Reject invalid initial states","Always - establish invariant at birth"],["Validate in mutators","Check before every state change","When mutation is necessary"],["Immutability","Objects can't change, so invariants can't be violated post-construction","When feasible - strongest guarantee"],["Factory methods","Control object creation to ensure valid states","Complex initialization logic"],["Defensive copies","Prevent callers from mutating internal state","When returning mutable internals"]],"caption":"Strategies for Maintaining Invariants","headers":["Strategy","How It Works","When to Use"]},"type":"table"}],"titleType":"number","titleNumber":4},{"id":"identifying-invariants","title":"Identifying Invariants in Existing Code","content":[{"data":{"content":"How do you uncover the invariants in code that doesn't document them? This is a critical skill, especially when working with legacy systems or third-party libraries.\n\n**Discovery Techniques:**"},"type":"text"},{"data":{"items":["**Look at constructors**: What validation happens? What must be true for construction to succeed?","**Examine field types**: Are they non-nullable? Bounded? What types were chosen?","**Read setter/mutator methods**: What throws exceptions? What conditions are checked?","**Study getter methods**: What assumptions do they make about internal state?","**Analyze assertions and checks**: What conditions does the code verify?","**Check test cases**: What properties do tests verify? What edge cases are covered?","**Review documentation**: Even informal comments hint at expected properties"],"title":{"icon":"Search","text":"How to Find Hidden Invariants","type":"icon","color":"primary","variant":"outline-circle"},"variant":"accent"},"type":"list"},{"data":{"fileName":"discovering-invariants","languages":[{"code":"$7e","label":"TypeScript","value":"typescript"}]},"type":"code"},{"data":{"content":"**Common Invariant Patterns:**"},"type":"text"},{"data":{"rows":[["Financial","balance >= 0; credits - debits = balance; transaction amounts > 0"],["Collections","size >= 0; size = actual count; indices < size"],["Date/Time","start <= end; duration >= 0; times are in valid ranges"],["Graphs","edge connects valid nodes; no orphan edges; degrees are accurate"],["Trees","one root; no cycles; parent-child links consistent"],["Caches","capacity >= 0; size <= capacity; entries match stored keys"],["User Data","id is unique; email format is valid; required fields are non-null"]],"caption":"Common Invariants in Software Systems","headers":["Domain","Common Invariants"]},"type":"table"},{"data":{"icon":"Info","title":"Document What You Discover","content":"When you discover undocumented invariants, add them to the code as comments. Future maintainers will thank you. Better yet, add assertions or validation that explicitly checks invariants, making violations fail fast and loudly.","variant":"note"},"type":"callout"}],"titleType":"number","titleNumber":5},{"id":"summary","title":"Summary: The Foundation of Object Integrity","content":[{"data":{"content":"We've explored class invariants in depth. Let's consolidate the key insights:"},"type":"text"},{"data":{"type":"ordered","items":["**Invariants are always-true conditions** — Properties that must hold from object creation through its entire lifetime","**Invariants come in many forms** — Value constraints, field relationships, structural properties, synchronized counts","**Every method must maintain invariants** — Methods can temporarily break invariants during execution, but must restore them before returning","**Invariants enable trust and optimization** — Code can assume invariant properties without defensive checks","**Invariants create implicit contracts** — Callers rely on invariant properties; violating them breaks downstream code","**Document your invariants explicitly** — Future maintainers must understand what properties the class guarantees"],"title":{"icon":"CheckCircle","text":"Key Takeaways","type":"icon","color":"primary","variant":"outline-circle"},"variant":"accent"},"type":"list"},{"data":{"content":"**What's Next:**\n\nUnderstanding invariants is crucial preparation for the next topic: **Preserving Invariants in Subclasses**. When inheritance enters the picture, invariants become even more critical—and more easily violated.\n\nA subclass inherits not just the code of its parent, but also its invariants. If a subclass weakens or breaks these invariants, it violates the Liskov Substitution Principle, causing polymorphic code to fail in subtle, dangerous ways.\n\nYou'll learn exactly how subclasses can accidentally break parent invariants, and how to design inheritance hierarchies that maintain invariant integrity across the entire type hierarchy."},"type":"text"},{"data":{"icon":"CheckCircle","title":"Page Complete","content":"You now understand what class invariants are and why they're fundamental to object integrity. Invariants aren't just nice-to-have documentation—they're the contracts that make polymorphism safe and enable code to trust the objects it works with. Next, we'll explore how subclasses must preserve these invariants to maintain LSP compliance.","variant":"success"},"type":"callout"}],"titleType":"number","titleNumber":6}],"isLocked":false},{"id":"seed_42f91e8895588fc24a14e1cf62cc8fd5","title":"Preserving Invariants in Subclasses","order":1,"content":null,"isLocked":true},{"id":"seed_3ead52fe97500c92ba0678138d90f15a","title":"Invariant Violations","order":2,"content":null,"isLocked":true},{"id":"seed_1af4ef0008e2038b58639ef9647b61cf","title":"Designing for Invariant Safety","order":3,"content":null,"isLocked":true}]}},"dataUpdateCount":1,"dataUpdatedAt":1792313539894,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["learningContent","getModule"],{"input":{"slug":"invariants-in-inheritance"},"type":"query"}],"queryHash":"[[\"learningContent\",\"getModule\"],{\"input\":{\"slug\":\"invariants-in-inheritance\"},\"type\":\"query\"}]"},{"dehydratedAt":1792313539942,"state":{"data":{"json":null},"dataUpdateCount":1,"dataUpdatedAt":1792313539895,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["learningContent","getProgress"],{"input":{"moduleId":"seed_adf37ed1589a5ff8761a09f512bbda39"},"type":"query"}],"queryHash":"[[\"learningContent\",\"getProgress\"],{\"input\":{\"moduleId\":\"seed_adf37ed1589a5ff8761a09f512bbda39\"},\"type\":\"query\"}]"},{"dehydratedAt":1792313539942,"state":{"data":{"json":null},"dataUpdateCount":1,"dataUpdatedAt":1792313539895,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["feedback","get"],{"input":{"contentType":"LEARNING_PAGE","contentId":"seed_1af4ef0008e2038b58639ef9647b61cf"},"type":"query"}],"queryHash":"[[\"feedback\",\"get\"],{\"input\":{\"contentId\":\"seed_1af4ef0008e2038b58639ef9647b61cf\",\"contentType\":\"LEARNING_PAGE\"},\"type\":\"query\"}]"},{"dehydratedAt":1792313539942,"state":{"data":{"json":null},"dataUpdateCount":1,"dataUpdatedAt":1792313539895,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["feedback","getUserLike"],{"input":{"contentType":"LEARNING_PAGE","contentId":"seed_1af4ef0008e2038b58639ef9647b61cf"},"type":"query"}],"queryHash":"[[\"feedback\",\"getUserLike\"],{\"input\":{\"contentId\":\"seed_1af4ef0008e2038b58639ef9647b61cf\",\"contentType\":\"LEARNING_PAGE\"},\"type\":\"query\"}]"},{"dehydratedAt":1792313539942,"state":{"data":{"json":[]},"dataUpdateCount":1,"dataUpdatedAt":1792313539895,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"success","fetchStatus":"idle"},"queryKey":[["highlights","getHighlights"],{"input":{"contentType":"LEARNING_PAGE","contentId":"seed_1af4ef0008e2038b58639ef9647b61cf"},"type":"query"}],"queryHash":"[[\"highlights\",\"getHighlights\"],{\"input\":{\"contentId\":\"seed_1af4ef0008e2038b58639ef9647b61cf\",\"contentType\":\"LEARNING_PAGE\"},\"type\":\"query\"}]"},{"dehydratedAt":1792313539942,"state":{"data":"$undefined","dataUpdateCount":0,"dataUpdatedAt":0,"error":null,"errorUpdateCount":0,"errorUpdatedAt":0,"fetchFailureCount":0,"fetchFailureReason":null,"fetchMeta":null,"isInvalidated":false,"status":"pending","fetchStatus":"fetching"},"queryKey":[["highlights","getPopularHighlights"],{"input":{"contentType":"LEARNING_PAGE","contentId":"seed_1af4ef0008e2038b58639ef9647b61cf","minCount":2},"type":"query"}],"queryHash":"[[\"highlights\",\"getPopularHighlights\"],{\"input\":{\"contentId\":\"seed_1af4ef0008e2038b58639ef9647b61cf\",\"contentType\":\"LEARNING_PAGE\",\"minCount\":2},\"type\":\"query\"}]","promise":"$@7f"}]},"children":"$L80"}]