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?

958

What are the valid scopes of a variable in JavaScript?

1023

Is JavaScript a case-sensitive language?

976

What is the use of Void(0)?

1067

What is closure?

1099

how to read and write a file using JavaScript?

1190

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

1074

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

1055

What are JavaScript Cookies?

925

What Does JavaScript Void(0) Mean?

951

How to set the cursor to wait in JavaScript?

1084

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

1254

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

1013

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

1098

How to handle exceptions in JavaScript?

991

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Un-Answered Questions { JavaScript }

How to set the focus in an element using javascript?

1029

What is an asynchronous programming? Why is it important in javascript?

1063

Why typeof null is object?

999

can wwe trace a java program (class)

2356

Explain function hoisting in javascript?

907

How to add multiple functions in javascript?

903

what is a difference of subclass and main class

1809

How much time it will take to learn javascript?

909

Define unescape() function?

999

Text from your clipboard?

871

Is javascript open source?

873

what is pop()method in JavaScript?

1021

Write about the errors shown in javascript?

908

Explain what is javascript? List some data types supported by javascript?

894

What are associative arrays in javascript?

1067

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