Top 10 Javascript Interview Questions And Answers

1. What is JavaScript?

2. What are JavaScript Data Types?

3. Difference between “==” and “===”?

4. Why do we use “use strict” at the beginning of the JS file?

5. What is NaN?

6. What is a closure in JavaScript?

7. What is functional programming?

8. What are the disadvantages of using inner HTML in JavaScript?

9. For what reason do we wrap the substance of the JS document into a single function block?

10. How does a cookie is read in JS?



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Tanvir Ahmed

Tanvir Ahmed

A web developer with a strong interest in projects that require both conceptual and analytical thinking. I'm always eager to learn from anyone and everyone.