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

JavaScript Interview Questions

Questions Answers Views Company eMail

What is the difference between innerhtml and append() in javascript?

1266

How to create a popup warning box?

979

How can you set position of the page (top and left) to 0 using javascript in one line code?

1000

How do you change the style/class on any element?

1000

What does the attribute defer/async do when added to the script tag?

947

Is it possible make a call to server side event of any button using javascript?

937

How to create an input box?

1121

What is event bubbling in the dom?

1063

What does “1?+2+4 Evaluate to? What about 5 + 4 + “3??

996

What is the data type of variables in javascript?

1000

How do you write an event emitter base class that allows you to add event listeners?

989

what is the difference between the below two statements:- (1) var myname = "akiii"; (2) myname = "akiii";

896

Does javascript have the concept level scope?

993

What is undefined value means in javascript?

1047

To put a "close window" link on a page ?

941

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Un-Answered Questions { JavaScript }

what is the function of public class main ?

2008

What is the use of javascript?

983

Explain arrow functions?

966

How do I run code in browser console?

996

What does the following statement declares?

978

What is the use of decodeuri() and encodeuri()?

976

What is a method in javascript?

992

Where are cookies actually stored on the hard disk?

935

What are the types used in javascript?

999

Does javascript have the concept level scope?

993

What is the difference between test () and exec () methods?

1112

Auto insurance project..How to explain project in interviews.Using Automation tool (selenium).

1865

How to detect the operating system on the client machine?

911

What are the four basic data structures in javascript?

987

What does the term sticky session mean in a web-farm scenario? Why would you use a sticky session? What is the potential disadvantage of using a sticky session?

934

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