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

JavaScript Interview Questions

Questions Answers Views Company eMail

How to get value of an element by class in javascript ?

1007

What is console.log() and why it is used?

1124

What is 'use strict'?

1061

what are the difference unescape() and escape() functions?

1007

What is singleton class in javascript? Explain

1027

What is null in javascript?

1047

Who introduced javascript?

977

What is console.log()?

996

What is the difference between "var" and "let" keywords?

978

What are the difference between undefined and not defined in javascript?

1058

How can a value be appended to an array?

987

How will you explain closures in javascript? When are they used?

1042

What are screen objects?

975

How can javascript codes be hidden from old browsers that don't support javascript?

1004

How can the os of the client machine be detected?

963

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Un-Answered Questions { JavaScript }

Which company developed JavaScript?

1071

What is decodeuri(), encodeuri() in javascript?

1101

How do I open javascript on my iphone?

1008

How to write comment in JavaScript?

1539

Explain promise in javascript?

911

What coding language should I learn first?

953

How can you identify a function?

964

What is javascript used for on iphone?

956

What is null in js?

1053

How to open a window with no toolbar, but with the location object?

1004

Difference between Client side JavaScript and Server side JavaScript?

1786

What's the purpose of javascript?

1044

Explain the difference between call() and apply()?

1099

Write the point of difference between web-garden and a web-farm?

981

What is stack in javascript?

1017

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