Core Collections · interview question
What is the clearest sign that code around sets should be refactored?
Multiple choiceMediumchapter-3-curatedpremiumcore-collectionssets
Answer and explanation
Correct answer
B. 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. Use sets when the main question is whether something has already been seen or should be unique.
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