Core Collections · interview question
A teammate submits shaky sorting and grouping code. Which review comment is the strongest?
Multiple choiceMediumchapter-3-curatedpremiumcore-collectionssorting-and-grouping
Answer and explanation
Correct answer
C. Make the rule clearer and easier to explain. Sort or group data in the way that serves the report, reconciliation, or batching decision the operator needs.
Why
The best review comment anchors the change to readability, correctness, and future maintenance. Performing extra sorting or grouping without a reason adds cost and cognitive noise.
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