The DRY principle: its cost explained with examples

I know what you are thinking: “Again a boring article on DRY? Don’t we have enough already?”. You might be right. However I see too many developers (junior or senior) applying DRY like they are doing some witch hunting. Totally randomly or everywhere they can. So apparently we never have enough DRY principle articles on Internet. A little reminder for those in the back who don’t follow: the DRY principle means “Don’t Repeat Yourself” and was first introduced in the The Pragmatic Programmer. »

10 min. read