- What is ECMAScript in JavaScript
- What is difference between let ,cons and var
- What is spread operator, Rest operator , default parameter
- What is deep copy and shallow copy in JavaScript
- What is promise , callback function , async await in in JavaScript
- What is difference between promise and callback in JavaScript
- What is event bubbling and event capturing in JavaScript
- What is higher order function in JavaScript
- Explain different-2 types of function in JavaScript
- What is arrow function in JavaScript
- Why we use call, apply bind method in JavaScript
- How many way to create object in JavaScript
- What is prototype inheritance in JavaScript
- What is typescript
- What are the array method, string method
- What is difference between java and JavaScript
- What is throttling and debouncing in js
- What is Null and undefined in JavaScript
- What are the falsy values in JavaScript
- What is execution context, event loop ,stack, call queue, microtask queue in JavaScript
- What is setTimeOut and setInterval in JavaScript
- What is object.seal and object.freeze in JavaScript
- What is difference between map and set in JavaScript
- What is Weakmap and Weakset in JavaScript
- What is sessionStorage, localStorage , cookie,
- Write a program to sort an array
- What is use of json.stringify and json parse() method in JavaScript
- What are is map, filter , reducer in JavaScript
- What is generator function in JavaScript
- How to stop event propagation in JavaScript
- What is closure in JavaScript
- What is housing in JavaScript
- What is dead zone in JavaScript
- What is function currying in JavaScript
- What is mutation observer in JavaScript
- What is memorization in JavaScript
Most Important JavaScript Questions & Answers in 2022
