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useEffect vs event-handler logic in React

Guided tradeoff battle · Updated Mar 29, 2026

A React save flow needs a request, success toast, analytics event, and modal close after the user clicks Save. Would you run that logic in useEffect or keep it in the event handler?

  • Keep it in the event handler
  • Move it into useEffect

Challenge preview

useEffect vs event-handler logic in React: commit to a direction, justify it with the prompt constraints, and explain when the alternative wins.

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