Completed the task from Muhammad

[MuhammedDotNet]

Assignment: 01-20 - Complete JavaScript Workshop

Checklist

• All tests pass (npm run test:01) - Deep Clone
• All tests pass (npm run test:02) - Debounce & Throttle
• All tests pass (npm run test:03) - Custom Bind
• All tests pass (npm run test:04) - Memoization
• All tests pass (npm run test:05) - Promise Utilities
• All tests pass (npm run test:06) - Async Queue
• All tests pass (npm run test:07) - Retry with Backoff
• All tests pass (npm run test:08) - Event Emitter
• All tests pass (npm run test:09) - Observable
• All tests pass (npm run test:10) - LRU Cache
• All tests pass (npm run test:11) - Singleton
• All tests pass (npm run test:12) - Factory Pattern
• All tests pass (npm run test:13) - Decorator Pattern
• All tests pass (npm run test:14) - Middleware Pipeline
• All tests pass (npm run test:15) - Dependency Injection
• All tests pass (npm run test:16) - State Machine
• All tests pass (npm run test:17) - Command Pattern
• All tests pass (npm run test:18) - Strategy Pattern
• All tests pass (npm run test:19) - Proxy Pattern
• All tests pass (npm run test:20) - Builder Pattern
• Code follows the existing style
• No modifications to test files

Notes

Core JavaScript Mastery (01-04)

• Deep cloning with circular reference handling using WeakMap
• Debounce and throttle implementations with cancel support
• Custom bind with partial application and constructor support
• Memoization with TTL, LRU eviction, and custom key generation

Async Patterns (05-07)

• Promise utilities: all, race, allSettled, any from scratch
• Async queue with concurrency control and priority support
• Retry mechanism with exponential backoff and jitter

Design Patterns (08-20)

• Event Emitter with pub/sub pattern
• Observable with reactive operators (map, filter, take, skip)
• LRU Cache with O(1) operations
• Singleton pattern (class-based and factory-based)
• Factory pattern with type registration
• Decorator pattern with function composition
• Middleware pipeline with async support
• Dependency Injection container with circular dependency detection
• State Machine with transitions and guards
• Command pattern with undo/redo
• Strategy pattern with interchangeable algorithms
• Proxy pattern with ES6 Proxy API
• Builder pattern with fluent interfaces