Data Cleanup · interview question
A teammate submits shaky normalization pipelines code. Which review comment is the strongest?
Multiple choiceMediumchapter-4-curatedpremiumdata-cleanupnormalization-pipelines
Answer and explanation
Correct answer
D. Make the rule clearer and easier to explain. Normalize one field or one invariant at a time so bad rows can be rejected for a clear reason.
Why
The best review comment anchors the change to readability, correctness, and future maintenance. Trying to clean everything in one dense transformation step makes root causes harder to recover.
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More Data Cleanup questions
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