Node.js Error Handling Skill Master error handling patterns for building resilient Node.js applications that fail gracefully and provide meaningful feedback. Quick Start Error handling in 4 layers: 1. Custom Error Classes - Typed, informative errors 2. Try/Catch Patterns - Sync and async handling 3. Express Middleware - Centralized API errors 4. Process Handlers - Uncaught exceptions Core Concepts Custom Error Classes Async Error Handling Express Error Middleware Learning Path Beginner (1-2 weeks) - ✅ Understand Error types - ✅ Try/catch for sync code - ✅ Promise .catch() handling - ✅ Basic E…