Refactoring

What is refactoring?

• Changing a program's written code without changing its visible behavior is called refactoring.
• Examples:
  • Changing the name of a variable or method
  • Reorganizing or restructuring the code

Why refactor? When?

• Usually when planning code modifications (enhancements) that would be easier if the program were structured better or had better names.
• It's important to separate refactoring from enhancements.
  • Refactor first, and test thoroughly (regression testing).
  • Implement new functionality after refactoring is complete.