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 ?

966

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

1083

What is 'use strict'?

981

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

972

What is singleton class in javascript? Explain

983

What is null in javascript?

994

Who introduced javascript?

939

What is console.log()?

949

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

945

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

1006

How can a value be appended to an array?

953

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

996

What are screen objects?

929

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

965

How can the os of the client machine be detected?

906

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Un-Answered Questions { JavaScript }

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

972

why can't we call a static method from a non-static method

2249

How can a Javascript code redirect the user to a different page?

959

What is the use of a boolean object in javascript?

1035

Explain how to read and write a file using javascript?

982

List few difference between java and javascript?

1006

Are Typescript and Javascript the same?

1001

what does javascript null mean?

981

What is the use of dom?

955

What is the method for reading and writing a file in javascript?

966

What is the use of a map object in javascript?

964

What is the difference between undefined and object?

1004

Can we create session in javascript?

924

How to get the contents of an input box using javascript?

1075

How can you get the reference of a caller function inside a function?

1024

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