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 ?

953

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

1074

What is 'use strict'?

971

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

965

What is singleton class in javascript? Explain

975

What is null in javascript?

990

Who introduced javascript?

929

What is console.log()?

940

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

938

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

999

How can a value be appended to an array?

945

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

989

What are screen objects?

918

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

952

How can the os of the client machine be detected?

902

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Un-Answered Questions { JavaScript }

What is the use of a typedarray object in javascript?

945

What is the difference between innerhtml & innertext?

874

Name some of the JavaScript features?

1120

What is javascript and its advantages?

1009

What is the difference between undefined value and null value?

1012

What does _ mean in javascript?

987

What is argument objects in javascript?

925

What are math constants and functions using javascript?

1010

Where can I learn javascript for beginners?

889

How to delete an array entry using javascript?

906

What are anonymous functions in Javascript?

1014

What is javascript ‘strict mode’?

936

Is JavaScript case sensitive? Give an example?

1013

What is js full form?

956

Can javascript code be broken in different lines?

1040

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