JavaScript Debugging Guide

Debugging Philosophy

Debugging is detective work. Follow the evidence, form hypotheses, and test them systematically.

1. REPRODUCE  → Can you reliably trigger the bug?
2. ISOLATE    → What's the minimal code that causes it?
3. IDENTIFY   → What's the root cause?
4. FIX        → Change only what's necessary
5. VERIFY     → Does the fix work? Any side effects?

Quick Debugging Toolkit

Console Methods (Beyond console.log)