Node.js Complete Interactive Guide
Master Node.js from the event loop to security hardening with hands-on examples, MCQs, and coding challenges. Built for production developers.
Event Loop, Async & Parallelism
Master the event loop, promise patterns, streams, and worker threads — the heart of Node.js performance.
File System & HTTP Servers
Safely read and write the file system, and build production-grade HTTP servers with routing and middleware.
Modules, Testing & Debugging
Modern module systems, built-in testing, and data-driven debugging with profilers and heap snapshots.
Hardening Production Apps
Cryptography, TLS, permission model, security headers, rate limiting, validation, and JWT auth.