Performance · interview question
What is the clearest sign that code around optimization boundaries should be refactored?
Multiple choiceHardchapter-16-curatedpremiumperformanceoptimization-boundaries
Answer and explanation
Correct answer
D. When the rule is no longer easy to trace, explain, or change without breaking nearby behavior.
Why
A refactor is justified when the code stops communicating its intent. Stop after the measured bottleneck is addressed unless a new measured constraint appears.
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