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

JavaScript Interview Questions

Questions Answers Views Company eMail

What does 3+4+"7" evaluate to?

878

Are java and javascript the same?

988

How to create arrays in javascript?

974

When would you use javascript closures?

876

Taking a developer's perspective, do you think that that javascript is easy to learn and use?

926

Is a javascript script faster than an asp script?

976

Are you concerned that older browsers don't support javascript and thus exclude a set of web users? Individual users?

1026

How to embed javascript in a web page?

919

In a pop-up browser window, how do you refer to the main browser window that opened it?

887

What is event bubbling and capturing in javascript?

965

What is a fixed-width table and its advantages?

931

Consider the following code: 1 2 3 4 5 (function() { var a = b = 5; })(); console.log(b); what will be printed on the console?

850

What are the problems associated with using javascript, and are there javascript techniques that you discourage?

1245

If an array with name as "names" contain three elements, then how will you print the third element of this array?

1014

What are javascript closures?

1068

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Un-Answered Questions { JavaScript }

How do you include a comment in javascript?

911

What is a currying function?

919

Does html5 replace javascript?

950

What is variable typing in javascript?

1066

Is webassembly faster than javascript?

954

What is unescape() function?

1129

hi i want validations for two drop down lists. when user enter to second list by skipping first list alert box should appear. drop down validation Please choose an item from the drop down menu:

Choose a username:

please any body help me thanks

2094

What is question mark in javascript?

902

Explain javascript debounce function?

1036

Is javascript necessary?

854

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

953

What is the difference between arrow function and normal function?

1024

How fast can you learn coding?

998

What does clean white space mean?

849

What are the different types of errors in javascript?

958

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