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

JavaScript Interview Questions

Questions Answers Views Company eMail

What are the main functions performed by javascript statements?

1089

What value does prompt() return if the user clicked the cancel button?

912

Can you explain about screen object?

1028

How can I prevent others from reading/stealing my scripts or images?

959

How do I add a javascript event handler to an html page element?

931

Explain the difference between javascript and an asp script.

1182

What is push() method in javascript?

997

Why javascript is called as script for all browsers?

1045

What is encodeuri() function?

1101

What is difference between undefined variable and undeclared variable?

987

What is the difference between scripting and programming?

999

What is the difference between script type and the script language attributes?

990

What is the difference between client side javascript and server side javascript.

1159

How do I write script-generated content to another window?

980

What is unescape() function?

1196

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Un-Answered Questions { JavaScript }

What are the predefined functions in javascript?

1066

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

1183

Is javascript backend or frontend?

924

How to disable an html object ?

1208

What Is The Disadvantages Using InnerHTML In JavaScript?

1056

How to add html elements dynamically with JavaScript?

1015

What does parse Query String return in javascript?

1002

How to detect the OS on the client machine in JavaScript?

1150

How to open url in a new tab in javascript?

1034

What are ‘settimeout()’?

1194

What is null in js?

1053

What’s a way to append a value to an array?

1099

Can you explain about screen object?

1028

what is flux in javascript?

1094

Explain hoisting in javascript?

1094

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