Skip to content

Latest commit

 

History

History
24 lines (22 loc) · 1.97 KB

README.md

File metadata and controls

24 lines (22 loc) · 1.97 KB

Medium JavaScript Interview Questions

This section contains intermediate-level JavaScript interview questions. Click on each question to see its detailed answer.

  1. Explain slice() and splice() methods of an array. ✅
  2. What is event bubbling in JavaScript? ✅
  3. What is the value of the "this" keyword in arrow functions? ✅
  4. What are closures in JavaScript? ✅
  5. What is recursion in JavaScript? ✅
  6. What are higher-order functions in JavaScript? ✅
  7. What is a callback function in JavaScript? ✅
  8. What is the difference between synchronous and asynchronous programming? ✅
  9. What is the difference between querySelector and querySelectorAll? ✅
  10. What is hoisting in JavaScript? ✅
  11. What are JavaScript promises, and how do they work? ✅
  12. What is the difference between function declaration and function expression? ✅
  13. What are JavaScript modules, and why are they used? ✅
  14. What is the difference between shallow copy and deep copy? ✅
  15. What are the different ways to iterate over an array in JavaScript? ✅
  16. How does destructuring assignment work in JavaScript? ✅
  17. What are rest and spread operators in JavaScript? ✅
  18. What is the difference between call, apply, and bind methods? ✅
  19. How do you handle errors in JavaScript using try-catch? ✅
  20. What is the purpose of the new keyword in JavaScript? ✅