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

JavaScript Interview Questions

Questions Answers Views Company eMail

why you used Java Script? Can it use for both client side and server side validation purpose?

BeBo Technologies, HCL, Wipro,

12 36853

How do you send a message to the browser in JavaScript?

Four soft, Vsys,

3 12661

What are the security related issues in JavaScript scripts?

Four soft,

3 12797

Does javascript support multidimensional arrays ?

4 11770

Can you call a Java Applet using a JavaScript function?

HCL, Satyam,

2 11271

Can any one tell me how Java is purely an Oops language

3 7244

What is the use of the String Tokenizer

1 9186

What is the relationship between JavaScript and ECMAScript?

NIM, Satyam,

4 21621

What are JavaScript types?

Infosys, Satyam,

11 30571

How do you convert numbers between different bases in JavaScript?

College School Exams Tests, Satyam, UIST, Wipro,

4 17327

What does isNaN function do?

Satyam,

2 11811

What is negative infinity?

CoKinetic, Satyam,

2 9788

What boolean operators does JavaScript support?

Aptech, HCL, Satyam,

5 16971

What does "1"+2+4 evaluate to?

Acheron, Satyam,

10 35749

How about 2+5+"8"?

Satyam,

6 10766

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Un-Answered Questions { JavaScript }

Is array an object javascript?

941

What creates scope in javascript?

1032

How javascript variables work?

994

How to shift and unshift using javascript?

969

How can a particular frame be targeted, from a hyperlink, in javascript?

1045

What is a function in javascript and how does it work?

966

Name some of the built-in methods and the values returned by them.

1032

What does the isNaN() function?

970

What is the difference between var and let?

940

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

1068

What are the main functions performed by javascript statements?

1047

What is the function of delete operator?

973

How to find operating system in the client machine using javascript?

965

What is a module code?

1027

What is spread operator?

874

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