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 14484

How do you create a new object in JavaScript?

Satyam,

3 11242

How do you assign object properties?

Satyam,

3 9702

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

Satyam,

5 23558

What is this keyword?

Cognizant, Infosys, Satyam,

9 15658

What is the difference between java and java script?

IWW, Wipro,

9 22891

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

1982

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

1 5740

Write sample code for pagination using java script.

3 28589

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

Ramco,

7 20985

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

5 37770

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

4 13175

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

1 8199

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 10091

Give code Email Checking

3 7498

Post New JavaScript Questions

Un-Answered Questions { JavaScript }

why we need java instead of c

1663

What are parameters in javascript?

959

What is output of “20” + 20 + 20 and “20” + ( 20 + 20)? In javascript?

1011

What is the difference between a web-garden and a web-farm?

949

Can I declare a variable as CONSTANT in JavaScript?

977

How to use one javascript function for multiple input fields?

2044

Do I need to install javascript?

954

Does javascript support automatic type conversion, if yes give example.

1050

How do you add an element at the end of an array?

992

Are java and javascript same?

971

Is a function an object?

970

When do we use JSON.stringify()?

1028

How do you sort in javascript?

1029

java pgm for reads a file(text file) and removes all the spaces then the text and write this back into the same file. e.g: (Input) _______ chennai is fourth biggest city in india. (output) _______ chennaiisfourthbiggestcityinindia.

1986

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

2092

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