Type Hints · interview question
Which move is the best default when optional and collections become part of this workflow?
Multiple choiceEasychapter-10-curatedpremiumtype-hintsoptional-and-collections
Answer and explanation
Correct answer
B. Declare when values may be absent and when callers should expect lists, sets, or mappings of a certain shape.
Why
Declare when values may be absent and when callers should expect lists, sets, or mappings of a certain shape. That is the stronger engineering move because strong candidates mention that dynamic languages still benefit from explicit expectations. If None and collection contents are left implicit, edge cases spread across many call sites.
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