重構是什麼？

名詞定義

出自於 Refactoring 2/E

Refactoring (noun): a change made to the internal structure of software to make it easier to understand and cheaper to modify without changing its observable behavior.

Refactoring (verb): to restructure software by applying a series of refactorings without changing its observable behavior.

出自於 Working Effectively with Legacy Code

常見迷思

• 一定需要用很多時間來重構。
• 重構會讓推出新功能的速度變慢。
• 重構會讓程式運行速度變慢。
• 重構過程中可以順便添加新功能。