Design Patterns · Junior · Question 75 of 75

What does "premature optimization is the root of all evil" warn against?

✓Correct answer: Making code complex for speed before measuring that it's actually a bottleneck
2Ever optimizing code
3Writing tests too early

Explanation

Measure first (profiler, Web Vitals), then optimize the hot spots. Obvious algorithmic problems are still worth avoiding from the start.

Further reading

Wikipedia: Program optimization - When to optimize ↗

Test yourself

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