JavaScript Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

JavaScript Interview Questions

Questions Answers Views Company eMail

What is lazy loading java?

840

What is javascript tree shaking?

947

What are arrays in javascript?

907

Can array in javascript be extended?

846

How javascript sort function works?

946

How compare function works javascript?

811

How do you sort in javascript?

1007

Is array an object javascript?

888

What is a function in javascript and how does it work?

891

What is prototype in javascript and how do you use it?

882

Is javascript pure object oriented?

822

Why is it called javascript?

892

What is MEAN in javascript

1 1323

What is Minification

1 1397

What is an enum

1 1157

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Un-Answered Questions { JavaScript }

What is an asynchronous programming? Why is it important in javascript?

1000

Which built-in method returns the character at the specified index?

1179

What Is The Disadvantages Using InnerHTML In JavaScript?

958

List some unit testing frameworks javascript

902

What is the use of debugger keyword in javascript?

861

what will happen and why if i will acess the methods of superclass which is declared as private by a object of same subclass.

1998

What is undefined in math?

829

What is a boolean in javascript?

957

If you need to hide the javascript code from the older browser versions, how will you perform it?

934

What is the similarity between the 1st and 2nd statement?

910

What is console.time() and console.timeend()? What is its syntax, and why is it used?

938

What are all the looping structures in javascript?

1021

Why is currying called currying?

822

What are the types of variables in javascript?

878

How to access an external javascript file that is stored externally and not embedded?

1083

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