Understand the event loop. Avoid blocking it. Master Node.js.
This book demystifies the core of Node.js — the event loop — and teaches you how to use it efficiently and safely in real-world systems.
You'll learn how Node.js schedules work, handles concurrency, and delivers performance from a single thread. More importantly, you'll discover how to avoid event loop blocking, the silent killer of performance in production.
Inside the book:
- How Node.js handles concurrency with a single thread
- The real differences between setTimeout, setImmediate, and process.nextTick
- How each event loop phase works and what code runs when
- Why non-blocking doesn't always mean fast
- How to design resilient, efficient backend architectures
- Proven techniques for avoiding event loop blocking under real workloads
Who this book is for:
- Intermediate JavaScript developers leveling up to backend Node.js
- Backend engineers who want to understand performance bottlenecks
- Educators or mentors teaching how the Node.js runtime really works
- Anyone who wants to master async behavior and concurrency in Node.js
