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

JavaScript Interview Questions

Questions Answers Views Company eMail

How to achieve inheritance in javascript?

937

How to convert json object to string?

996

How to open url in a new tab in javascript?

939

How to modify the url of the page without reloading the page?

937

Can you explain the difference between == and ===?

1045

What is "this"?

884

Explain how to write class methods vs. Instance methods.

947

How do you define a class and its constructor?

929

Explain a story about javascript performance problems?

881

What is a closure and why are they so useful to us?

930

How to convert a string to lowercase?

1089

Explain why asynchronous code is important in javascript?

987

What is function overloading in javascript?

1003

Can you explain the difference between call and apply?

933

What are two-way data binding and one-way data flow, and how are they different?

1022

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Un-Answered Questions { JavaScript }

What is the difference between innerhtml & innertext?

842

Explain how can you submit a form using JavaScript?

862

Who created npm?

877

How to test a string as a literal and as an object ?

1045

What is meaning of === in javascript?

912

What is enum in javascript?

1058

What are classes in javascript?

922

What is stack queue?

875

How to update a function in javascript?

1051

Are there any iphone Institutes which also train iphone automation testing in Hyderabad?

1962

How do you round a value in javascript?

886

What is unescape() function?

1058

how can we retrieve value from one database server and store them another database server using sql server code

2042

How do I get javascript?

897

Why would you use a sticky session?

902

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