Code Refactoring
Code refactoring is the disciplined process of restructuring existing computer code without changing its external behavior to improve non-functional attributes like readability, maintainability, and performance. It involves cleaning up code, removing duplication, simplifying complex structures, and applying design patterns to make the codebase more efficient and easier to work with. This practice is essential for long-term software health and reducing technical debt.
Developers should learn and apply code refactoring when working with legacy systems, after adding new features that create code smells, or during code reviews to improve quality. It's crucial for maintaining scalable applications, reducing bugs, and enabling faster future development by making code more modular and understandable. Specific use cases include preparing code for new team members, optimizing performance bottlenecks, or aligning with updated coding standards.