DRY

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Overview

Don't Repeat Yourself (DRY) principle sys: "Every piece of knowledge should have a single, unambiguous, authoritative representation within a system."

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. Duplication forces people to make a change in multiple places, and that is not good.

DRY and Coupling

DRY and Coupling

Organizatorium