refactor-code

Refactoring reduces complexity by applying techniques like extracting methods and classes, improving naming, and reorganizing code to address code smells while preserving functionality. The process runs tests, documents changes, and delivers metrics showing issues addressed and before/after comparison.

Code smells are patterns indicating potential problems—long functions, poor naming, high cyclomatic complexity—that hinder maintainability and future development. They're identified through code reviews, analysis tools, or manual inspection to target areas needing refactoring.

Yes. Refactoring systematically improves code structure, clarity, and organization while preserving existing behavior. Test coverage verification ensures functionality remains intact throughout the refactoring process.

Extract Method breaks down long functions into smaller, focused methods by identifying logical sections, creating new methods for each section, and updating call sites. This reduces cyclomatic complexity and improves readability without altering overall functionality.

Track cyclomatic complexity reduction, code coverage status, performance impact, and technical debt addressed. The refactoring report documents before/after metrics, techniques applied, and issues resolved to measure improvement and validate the refactoring outcome.

Refactor when code is functionally sound but difficult to maintain, contains identified smells, or has high complexity. Refactoring preserves working behavior while improving structure, making it lower-risk than rewriting when your tests pass and functionality is correct.