Debugging Best Practices

Systematic Approach

1. Reproduce the issue consistently
2. Isolate the problem (binary search)
3. Form a hypothesis
4. Test the hypothesis
5. Fix and verify the fix doesn't break anything

JavaScript/Node.js

• Use debugger statement + Chrome DevTools
• Use node --inspect for Node.js debugging
• Use console.trace() for call stacks
• Use console.table() for arrays/objects
• Check network tab for API issues