Your loop compiles the same regex a million times.
Anything computed inside a loop is multiplied by its length. Compiling a regular expression, reading a config value or recalculating a constant on every pass is pure waste.
GreenCode researchers list repeated work inside loops as an energy waste to fix.
GreenCode helps tackle this by rewriting flagged code one piece at a time. It writes any missing tests first, and returns every change for a person to approve. More on this.
Your loop compiles the same regex a million times. Anything inside a loop happens once for every pass. So its cost is multiplied by the length of the loop. Compiling a search pattern, reading a setting, or working out a constant. If it never changes between passes, doing it again is pure waste. Here is the fix you can use today. Move values that do not change up, above the loop. Compile patterns and look up settings once. Cache the result of a slow call when the inputs repeat. Now the work happens once, not a million times. GreenCode researchers list repeated work inside loops as an energy waste to fix. GreenCode's Constitution skill can help an AI coding agent find and fix this. Tools like Creedengo also flag energy code smells in six languages. GreenCode helps tackle this by rewriting flagged code one piece at a time. It writes missing tests first, and a person approves every change. That was GreenCode Tech Tip number twenty-eight. Follow for the next tip, and find more on greencode.ai/tech-tips.
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