Core Collections · interview question

Another engineer will maintain this code later. What choice helps the most around lists?

Multiple choiceMediumchapter-3-curatedpremiumcore-collectionslists

Keep lists implicit so the script stays short and hope the next engineer infers the rule.Solve the symptom with comments only and avoid changing the code shape around lists.Delay clarity until production traffic reveals the edge case and then patch it under pressure.Make the rule obvious in names, flow, and boundaries so the next reader does not have to reverse-engineer your intent.

Answer and explanation

Correct answer

D. Make the rule obvious in names, flow, and boundaries so the next reader does not have to reverse-engineer your intent.

Why

Maintainability comes from explicit intent. Interviewers like candidates who connect the structure choice to the operations that dominate the workflow.

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Another engineer will maintain this code later. What choice helps the most around lists?

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