Type Hints · interview question

Which naming or modeling choice is strongest for function type hints?

Multiple choiceMediumchapter-10-curatedpremiumtype-hintsfunction-type-hints

python

def shipping_fee(subtotal: float) -> float:
    return 0 if subtotal >= 100 else 6.5

Delay clarity until production traffic reveals the edge case and then patch it under pressure.Keep function type hints 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 function type hints.Use names and structures that describe the business fact directly instead of temporary implementation noise.

Answer and explanation

Correct answer

D. Use names and structures that describe the business fact directly instead of temporary implementation noise.

Why

Clear naming and modeling shorten debugging, review, and onboarding time.

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Which naming or modeling choice is strongest for function type hints?

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