Daily Software Tips & Tricks

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The Rule of Three for Refactoring

April 9, 2026

When you're tempted to copy and paste a block of code, remember the Rule of Three. The first time you write something, you just write it. The second time you do something similar, you might wince, but you can usually get away with duplicating it to keep moving.

However, the third time you find yourself writing the same logic, it is officially time to refactor that code into a reusable function or component. This practice prevents over-engineering too early while ensuring your codebase doesn't turn into a maintenance nightmare of redundant logic.