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

JavaScript Interview Questions

Questions Answers Views Company eMail

How and where javascript namespacing is used?

948

What is this? Var myarray = [[[]]];

1031

name any two javascript functions which are used to convert nonnumeric values into numbers?

920

How to access the value of a textbox using javascript?

1030

What is unobtrusive javascript?

938

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

1062

Does javascript support foreach loop?

995

What is a closure in javascript?

1026

What is the similarity between the 1st and 2nd statement?

964

What are the types used in javascript?

1005

How to add behavior to an element using javascript?

1018

What can javascript programs do?

1 2202

How to add buttons in javascript?

873

What is an object in javascript, give an example?

1030

What will be the output of the following statements?

948

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Un-Answered Questions { JavaScript }

What is a prompt box in javascript?

993

What do “1”+2+4 evaluate to?

937

Explain what is pop()method in JavaScript?

1211

Define unescape() function?

993

How to detect the OS on the client machine in JavaScript?

1110

What is the context in javascript?

933

What is a hash javascript?

1037

What is hoisted in javascript?

984

What is a nan value?

948

What is the use of a number object in javascript?

983

What is the main difference between Map collections and other collections such as Set.

3041

How dhtml is used in javascript?

1003

What are a fixed-width table and its advantages in javascript?

924

Difference between the substr() and substring() in JavaScript?

1062

How do you check if a variable is an object

1206

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