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 14357

How do you create a new object in JavaScript?

Satyam,

3 11069

How do you assign object properties?

Satyam,

3 9543

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

Satyam,

5 23368

What is this keyword?

Cognizant, Infosys, Satyam,

9 15360

What is the difference between java and java script?

IWW, Wipro,

9 22547

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

1934

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

1 5639

Write sample code for pagination using java script.

3 28430

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

Ramco,

7 20671

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

5 37572

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

4 12976

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

1 8125

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 9935

Give code Email Checking

3 7343

Post New JavaScript Questions

Un-Answered Questions { JavaScript }

Do I need javascript enabled?

924

hi i want validations for two drop down lists. when user enter to second list by skipping first list alert box should appear. drop down validation Please choose an item from the drop down menu:

Choose a username:

please any body help me thanks

2049

What is var and let in javascript?

882

How to trigger a postback on an updatepanel from javascript?

857

What is the difference between write and writeln in javascript?

842

What is the use of a weakset object in javascript?

964

What is use of flutter?

858

What is triple dot in javascript?

929

What is lazy loading java?

829

How do you implement Ajax using hide() function in JQuery?

2204

Explain the working of timers in javascript?

967

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

900

Explain javascript event delegation model?

928

What does undefined value mean in javascript?

1024

How to make elements invisible?

1069

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