// Global Scope
function outer() {
return () => {
Closure
}
🔥
ClosuresPrototypesPatternsProxy
Deep dive into JavaScript internals. Master closures, prototypal inheritance, design patterns, and metaprogramming to write elegant, maintainable code.
Advanced
Advanced JavaScript
Take your JavaScript skills to the next level. This section covers advanced concepts that every senior developer should know: closures, prototypes, async patterns, metaprogramming, and more.
⚠️ Prerequisites
This is an advanced course. You should be comfortable with JavaScript fundamentals including variables, functions, arrays, objects, DOM manipulation, and basic async operations before proceeding.
Advanced Topics (16 Lessons)
1→
Closures
Understanding closures and lexical scoping in JavaScript
2→
Prototypes & Inheritance
Prototype chain, prototypal inheritance, and Object.create
3→
The 'this' Keyword
How 'this' works in different contexts: global, object, arrow functions, bind/call/apply
4→
Event Loop & Concurrency
Call stack, task queue, microtasks, and how JavaScript handles asynchronous operations
5→
Promises Deep Dive
Promise internals, chaining, error handling, Promise.all, Promise.race, and more
6→
Async/Await Patterns
Advanced async/await usage, error handling, parallel execution, and best practices
7→
Generators & Iterators
Generator functions, the iterator protocol, and custom iterables
8→
Proxy & Reflect
Metaprogramming with Proxy objects and the Reflect API
9→
Symbols
Symbol primitive type, well-known symbols, and use cases
10→
ES Modules
Import/export syntax, dynamic imports, module patterns, and bundling
11→
Memory Management
Garbage collection, memory leaks, WeakMap, WeakSet, and performance optimization
12→
Web APIs
Fetch API, Web Storage, IndexedDB, Web Workers, and more browser APIs
13→
Functional Programming
Pure functions, immutability, higher-order functions, currying, and composition
14→
Design Patterns
Common JavaScript patterns: Singleton, Factory, Observer, Module, and more
15→
Advanced Error Handling
Custom errors, error boundaries, global handlers, and debugging strategies
16→
TypeScript Introduction
Type annotations, interfaces, generics, and why TypeScript matters
Related Learning Resources
Build on your JavaScript foundation with these related tutorials.