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

JavaScript Interview Questions

Questions Answers Views Company eMail

TypeError: document.getelementbyid(...) is null?

1000

What are the valid scopes of a variable in JavaScript?

1060

Is JavaScript a case-sensitive language?

1018

What is the use of Void(0)?

1114

What is closure?

1167

how to read and write a file using JavaScript?

1255

In Javascript are calculations with fractional numbers guaranteed to be precise?

1155

Which built-in method calls a function for each element in the array?

1095

What are JavaScript Cookies?

976

What Does JavaScript Void(0) Mean?

993

How to set the cursor to wait in JavaScript?

1145

Which built-in method returns the character at the specified index?

1310

What will happen if an infinite while loop is run in Javascript?

1079

How can you convert the string of any base to integer in JavaScript?

1163

How to handle exceptions in JavaScript?

1030

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Un-Answered Questions { JavaScript }

Why is javascript used for web pages?

1003

What is createtextnode?

960

How to create a function using function constructor?

1069

What is javascript namespacing?

1103

What are the different actions that are performed using javascript?

1118

What are the problems associated with using javascript, and are there javascript techniques that you discourage?

1326

what is the difference between window & document in javascript?

1000

What's math constants and functions using javascript?

1130

What are associative arrays in javascript?

1110

What is event in javascript?

1011

What is meant by vanilla javascript?

1045

How do you access an element in an HTML document with JavaScript?

1062

Is everything in javascript asynchronous?

950

What is nodetype in javascript?

1055

Explain the difference between javascript and an asp script.

1181

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