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?

954

What are the valid scopes of a variable in JavaScript?

1023

Is JavaScript a case-sensitive language?

972

What is the use of Void(0)?

1067

What is closure?

1097

how to read and write a file using JavaScript?

1188

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

1072

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

1054

What are JavaScript Cookies?

922

What Does JavaScript Void(0) Mean?

947

How to set the cursor to wait in JavaScript?

1081

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

1252

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

1010

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

1098

How to handle exceptions in JavaScript?

988

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Un-Answered Questions { JavaScript }

What does e mean in javascript?

1009

What is the difference between null and undefined?

1903

What is 'use strict'?

981

How to redirect a url using JavaScript?

1115

How to clone an object in javascript?

1009

Explain the term closure?

1021

what will happen and why if i will acess the methods of superclass which is declared as private by a object of same subclass.

2044

How do you organize your JavaScript code?

1088

How to test for bad numbers using javascript?

980

Difference json arrary vs json object ?

943

Does javascript care about whitespace?

968

Which built-in method sorts the elements of an array?

1025

What is meant by object oriented programming?

905

What is an ECMAScript?

1116

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

954

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