Follow-up · depth 10
Compare Decorators with a common alternative in a design review
Compare Decorators with a common alternative in a design review
Answers use simple, clear English.
Quick interview answer
Compare Decorators vs the usual alternative on complexity, latency, failure modes, and ops cost. Pros: DRY cross-cutting logic; composable with stacking decorators. Cons: Stack order matters; debugging wrapped call stacks is harder.
Detailed answer
Design-review comparison for Decorators: Axes: correctness, latency, throughput, complexity, operability. From the topic: Pros: DRY cross-cutting logic; composable with stacking decorators. Cons: Stack order matters; debugging wrapped call stacks is harder. Recommendation: pick Decorators when its strengths match the SLO; otherwise choose the alternative and say why. Parent context: Common mistakes: Forgetting @wraps; decorator not returning wrapper function. Best practices: Use wraps; accept *args/**kwargs in generic decorators; prefer parameterized factory pattern.
Full explanation
Show a clear decision framework, not “it depends” with no criteria. Pros: DRY cross-cutting logic; composable with stacking decorators. Cons: Stack order matters; debugging wrapped call stacks is harder.
Follow-up questions
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Parent context — Decorators
Common mistakes: Forgetting @wraps; decorator not returning wrapper function. Best practices: Use wraps; accept *args/**kwargs in generic decorators; prefer parameterized factory pattern.
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