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JavaScript Interview Questions
Questions Answers Views Company eMail

What looping structures are there in JavaScript?


2 13005

How do you create a new object in JavaScript?


3 9245

How do you assign object properties?


3 7855

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


5 21189

What is this keyword?

Cognizant, Infosys, Satyam,

9 11746

What is the difference between java and java script?

IWW, Wipro,

9 19147

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


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

1 4794

Write sample code for pagination using java script.

3 27083

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


7 17974

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

5 35610

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

4 11058

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

1 7351

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 8211

Give code Email Checking

3 5395

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Un-Answered Questions { JavaScript }

What does the instanceof operator do?


What is meant by vanilla javascript?


Which built-in method returns the characters in a string beginning at the specified location?


List out the Mouse Events?


How to validate a form in javascript?


How Can I get facebook fans/likes?


Is JavaScript a true OOP language?


What is a module code?


What are 2 (shorthand) boolean operators supported by javascript


Create a new javascript object with the keys of “fname” equal to your first name, “lname” equal to your last name, and “fcolors” equal to and array of 3 of your favorite colors. Assign this object to a variable called “me” and log it to the console.


How can a page be forced to load another page in javascript?


What are the variable naming conventions in javascript?


What is difference between local and global scope in javascript ?


What is spread operator react?


How do I disable javascript in my browser?