Core Collections · interview question
What is the clearest sign that code around nested data should be refactored?
Multiple choiceMediumchapter-3-curatedpremiumcore-collectionsnested-data
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. Read and transform nested structures step by step so the code stays honest about what is optional and what is required.
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