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

JavaScript Interview Questions

Questions Answers Views Company eMail

What is enum with example?

1085

What is array constructor in javascript?

1111

Which is faster jquery or javascript?

992

Does spread operator deep copy?

1022

How many types of variables are there in javascript?

986

Why javascript is fast?

961

Should you use var or let?

1051

What is the microsoft version of javascript?

1123

What is object freeze?

920

How do I run code in browser console?

1061

How many types of data types are there?

1024

How do browsers work?

986

What is enum size?

911

What is meant by object oriented programming?

962

What does polyfill mean?

940

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Un-Answered Questions { JavaScript }

Explain equality operators in javascript?

1019

What is double exclamation point?

998

Which built-in method adds one or more elements to the end of an array and returns the new length of the array?

1373

What does the following statement declares?

1065

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

1105

Explain unescape() in javascript?

993

What is unobtrusive javascript? How to add behavior to an element using javascript?

1011

What is undefined x 1 in JavaScript?

1041

Is JavaScript case sensitive? Give an example?

1082

What is the use of Push method in JavaScript?

1049

How can JavaScript be used?

1000

Can you put javascript in html?

918

What is the use of document object?

966

How to make a function in javascript?

977

How can javascript language be separated from objects?

1002

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