Code Refactoring

Improve code quality without changing behavior.

When to Use

• Code is hard to understand or modify
• Duplicated logic across files
• Functions/classes are too large
• Technical debt reduction
• Before adding new features

Refactoring Process

1. Ensure tests exist - Add tests before refactoring
2. Small steps - Make incremental changes
3. Run tests - Verify after each change
4. Commit often - Keep changes reversible