1. What is React.js? How is it different from other javascript frameworks?
  2. Can you explain about the standard JavaScript toolchain, transpilation, JSX?
  3. Explain lifecycle of a React component?
  4. Have you used HTML while working with React.js?
  5. How do you embed two components in one component?
  6. How might React handle or restrict Props to certain types, or require certain Props to exist?
  7. How React component lifecycle methods help in building interfaces?
  8. How React Router and its techniques differ from more traditional JavaScript routers like Backbone’s Router?
  9. How to apply validation on Props in ReactJS? Apply validation in previously developed example in above question?
  10. How to set up routing in ReactJS. Explain with the help of step by step approach?
  11. How to use Events in ReactJS? Give an example of using events?
  12. How to use Forms in ReactJS? Give an example of using Forms in ReactJS by developing a User Registration Form?
  13. How would you create Higher Order Components (HOCs) in React.js?
  14. Please explain step by step approach on how to setup environment for ReactJS?
  15. What are pure functional Components?
  16. What are react component lifecycle methods?

TOP MNC REACT JS INTERVIEW QUESTIONS