Asynchronous and Scalable JavaScript: Promises, Async/Await, Design Patterns (Observer, Singleton), and Optimization (Debouncing, Throttling) (JavaScript Learning Roadmap 2025)

Stop Fighting Async—Master It Like a Pro!

Asynchronous JavaScript is where most developers struggle—but not you! Conquer Promises, async/await, and the event loop, then apply design patterns (Observer, Singleton) to build robust systems. Optimize performance with debouncing, throttling, and Web Workers.

🔹 What You’ll Learn:
✔ Callback hell → elegant async code
✔ Design patterns for maintainable apps
✔ Speed up your apps with optimization tricks
✔ Project: API batch processor

Say goodbye to messy async code—this book is your ultimate survival guide.