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AI solution for React Quiz on BFE.dev
24. useEffect() timing

The code will output the following to the console:

1
3
5
6
2
4

Explanation:

  • "1" is logged as soon as the component function is executed.
  • "3" is logged because the Promise is resolved and its callback is executed (microtask queue).
  • "5" is logged when the "click me" button is clicked.
  • "6" is logged before the state is updated.
  • "2" is logged because the useEffect hook is executed after the state update.
  • "4" is logged after the event loop has processed all tasks and the timer callback is executed.