Code Safety · interview question
What is the clearest sign that code around mutation and copying should be refactored?
Multiple choiceHardchapter-3-curatedpremiumcode-safetymutation-and-copying
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. Copy or rebuild data intentionally when you need a new version instead of quietly mutating shared state.
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