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

JavaScript Interview Questions

Questions Answers Views Company eMail

What looping structures are there in JavaScript?

Satyam,

2 14503

How do you create a new object in JavaScript?

Satyam,

3 11272

How do you assign object properties?

Satyam,

3 9729

What is a way to append a value to an array?

Satyam,

5 23585

What is this keyword?

Cognizant, Infosys, Satyam,

9 15732

What is the difference between java and java script?

IWW, Wipro,

9 22964

How to prevent a window not to be clicked or selected any way in java script?

1996

What are the methods of validating whether the form is secure?

1 5763

Write sample code for pagination using java script.

3 28626

What is the main difference between Client side JavaScript and and Server side Java Script?

Ramco,

7 21061

How to add a combo box dynamically at run time in Java script?

5 37802

How to go next field without filling the text? Which function should we use?

4 13193

Explain about session? Where it runs & what are different types of session handling?

1 8223

We are facing problem with the compatibilty of IE 7 and IE 6.We are calling a showModal window that is working fine in IE6 but with IE7 it opens a new Window and Data is not getting poputaled.In some pages it Gives an error "The webpage you are viewing is trying to Close the window.Do you want to close this window".

SAP Labs, TCS,

4 10122

Give code Email Checking

3 7520

Post New JavaScript Questions

Un-Answered Questions { JavaScript }

What does “1?+2+4 Evaluate to? What about 5 + 4 + “3??

1002

Is there any ide for javascript?

985

What is difference between callback and promise?

919

How and where javascript namespacing is used?

949

Explain how to read and write a file using javascript?

982

Is javascript free to use?

947

How to read a cookie using javascript?

1146

What is webassembly good for?

898

What is global variable in javascript?

930

What is dataview in javascript?

951

How do I run code in browser console?

1006

What is the microsoft version of javascript?

1058

What makes something a function?

952

How many data types are there in javascript?

1045

What are nodes in javascript?

983

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