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?

905

What are the valid scopes of a variable in JavaScript?

955

Is JavaScript a case-sensitive language?

919

What is the use of Void(0)?

1025

What is closure?

1026

how to read and write a file using JavaScript?

1113

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

993

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

1007

What are JavaScript Cookies?

878

What Does JavaScript Void(0) Mean?

892

How to set the cursor to wait in JavaScript?

1003

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

1176

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

948

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

1009

How to handle exceptions in JavaScript?

941

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Un-Answered Questions { JavaScript }

How are DOM utilized in JavaScript?

1065

How do you name a variable in javascript?

899

What does 3 dots mean in javascript?

848

How to create an object using javascript?

1077

What makes something a function?

896

Is python better than javascript?

835

What is servlet in javascript?

901

How long does it take to get good at javascript?

850

What is difference between deep and shallow object coping in javascript?

983

What is the role of javascript in a web page?

853

What are javascript closures?when would you use them?

898

Explain the difference between call() and apply()?

953

Who is the world famous hacker?

901

When would you use var in your declaration and when you wouldn’t?

885

What is require in javascript?

1019

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