useId Quiz

Test your knowledge of the useId Hook in React, including accessibility attributes, stable IDs, server rendering, and common caveats.

20 questions · free · answers explained

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All questions in this quiz

  1. What is the main purpose of the useId Hook in React?
  2. Which accessibility pattern is a good use case for useId?
  3. Where should useId be called?
  4. Should useId be used to generate keys for a rendered list?
  5. Why should list keys come from data instead of useId?
  6. How does useId help with server rendering?
  7. What can break useId consistency during hydration?
  8. Can one useId value be used to create several related IDs?
  9. Why might a component append suffixes to a useId value?
  10. What should you avoid assuming about the string returned by useId?
  11. Can useId replace a real database ID for persisted records?
  12. Which attribute often works with an ID generated by useId?
  13. Why is useId better than Math.random for IDs in rendered markup?
  14. Does useId return a different value every time the component re-renders?
  15. What is a good useId pattern for a reusable form field component?
  16. Why might a reusable component accept an id prop even if it uses useId?
  17. What is a common mistake with useId?
  18. What does useId return?
  19. Which pair is commonly connected with a useId value?
  20. What is the main rule of thumb for useId?

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