Hello gyus here some react js interview questions it will help you to practice for your interview question and best of luck for the interview.

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  1. Tell me what ES6 features you have used ?
  2. Difference between map and foreach ?
  3. What is shallow copy and deep copy ?
  4. Can you tell me difference between let, const and var ?
  5. Have you worked with promises ? what is promises ?
  6. What is the difference between promises and async await ?
  7. What is call ,apply and bind ? explain with example.
  8. What is Rest and Spread operator ? show with example.
  9. what is the slice and splice method in JavaScript ?
  10. What is strict mode in JavaScript ?
  11. what is JSX ? can browser understands JSX ?
  12. Make a small form component with name/password ->with Validation ?
  13. Where you will perform an API call if you need to get data before component Did Mount ?
  14. React Hooks Explanations used for lifecycle methods ?
  15. useMemo / React.memo difference ?
  16. what is redux ? when to use redux ?
  17. Few more simple questions on Webpack/Typescript ?