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10 JavaScript Interview Questions You should Know!

1. What do you understand about JavaScript?

2. What is the difference between undefined and null in JavaScript?

3. Why double( == ) equal or triple ( === ) equal operators are not the same?

4. Explain Global Scope, Block Scope, and Lexical Scope in JavaScript.

5. What is the meaning of wasting?

6. What's the difference between binding, call, and apply?

7. What is call stack?

8. Explain the event loop.

console.log("Hello world");
setTimeout(function () {
console.log("Inside Here");
}, 5000);
console.log("Yahoo!");

9. What is an API?

10. How DOM Works?

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