DRY
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Overview
Don't Repeat Yourself - DRY: If you are in the position to write the second time the same behavior (copy-and-paste) that means the behavior belongs into a reusable function.
DRY and Coupling
Organizatorium
- The "rule of three" for software reuse suggests the you should turn something into a reusable component when you find three places that you need to use it. https://blog.codinghorror.com/the-delusion-of-reuse/ Facts and Fallacies of Software Engineering https://www.amazon.com/exec/obidos/ASIN/0321117425/