Performance · interview question

Another engineer will maintain this code later. What choice helps the most around profiling first?

Multiple choiceMediumchapter-16-curatedpremiumperformanceprofiling-first

Solve the symptom with comments only and avoid changing the code shape around profiling first.Keep profiling first implicit so the script stays short and hope the next engineer infers the rule.Make the rule obvious in names, flow, and boundaries so the next reader does not have to reverse-engineer your intent.Delay clarity until production traffic reveals the edge case and then patch it under pressure.

Answer and explanation

Correct answer

C. Make the rule obvious in names, flow, and boundaries so the next reader does not have to reverse-engineer your intent.

Why

Maintainability comes from explicit intent. Interviewers trust performance answers more when they begin with measurement rather than confidence.

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Another engineer will maintain this code later. What choice helps the most around profiling first?

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