Node.js Cheat Sheet

Comprehensive Node.js reference covering NPM commands, core modules, Express.js framework, async programming patterns, environment configuration, and modern backend development best practices.

📚 Quick Navigation

📦 NPM & Package Management 🔧 Core Modules 🚀 Express.js Framework ⏳ Async/Await Patterns ⚙️ Environment & Configuration 🌊 Streams & Buffers 🐛 Debugging & Monitoring ✅ Best Practices

Node.js Best Practices

🔒 Security First

Use helmet, validate inputs, hash passwords, and implement rate limiting

⚡ Async/Await

Prefer async/await over callbacks and handle errors properly

🏗️ Modular Code

Use Express Router and separate concerns into modules

🔧 Environment Config

Use dotenv and validate required environment variables

📊 Monitor Performance

Implement health checks, logging, and graceful shutdown

🧪 Test Everything

Write unit tests and integration tests for reliability

Node.js cheat sheet covering modern backend development with Express.js and best practices

📦 NPM Commands 🚀 Express.js 🔍 Searchable 📱 Mobile Friendly