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Front-end Interview questions | set-1

This is first set of front-end interview questions . These given below front-end Interview questions are asked very frequently to candidates.

  1. Difference between var and let.
  2. What is prototype and prototype chain ?
  3. Polyfill for promise all.
  4. What is async / await ?
  5. How async / wait is different from promises ?
  6. What is difference between function expression and declaration ?
  7. What is difference ‘==‘ and ‘===‘ ?
  8. What is difference between arrow and normal function ?
  9. What are closures ?
  10. What are promises and how are they better than callbacks ?
  11. Polyfill for bind.
  12. What are the different types of browser storage ?
  13. What is difference between null and undefined.
  14. What is difference between spread and rest operator.
  15. What is prototype and prototype chain ?
  16. Reverse a string.
  17. What are some practical uses of closures ?

To learn more about technical stuff, Please refer given below link.


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