Javascript Interview Questions And Answers

More interview questions and answers

How to use throw statement in JavaScript?

How to use Methods in JavaScript?

JavaScript is an Object Oriented Programming language or not?

How to use Special Characters in JavaScript?

How to use Math Object in JavaScript?

How to use Boolean Object in JavaScript?

How you can perform restriction for user not to copy web page in JavaScript?

How we get value using JavaScript?

How you perform Validation from JavaScript?

how we call function in JavaScript?

How to implement Time Control in JavaScript?

What is the JavaScript?

How you define JavaScript Code?

Is Java and JavaScript are same or not?

When we use JavaScript?

What are you understand about ECMAScript?

How to use JavaScript on HTML pages?

How to use comments in JavaScript?

In HTML where JavaScript will executed?

How to use an External JavaScript?

Is JavaScript Case-Sensitive or not?

How you define JavaScript Statement?

How you define JavaScript Blocks?

How we use JavaScript Comments?

How you define Javascript Variable?

How to create variable and assign value to those variables in JavaScript?

How you define JavaScript Operator?

How you define Comparison and Logical Operators?

How to use Conditional Statements in JavaScript?

How you define Popup Boxes in JavaScript?

How we use functions in JavaScript?

How to define function in JavaScript?

What is the Lifetime of JavaScript variables?

How we use Loop in JavaScript?

How we use Break and Continue Statement in JavaScript?

How you define for..in statement in JavaScript?

How you define Events in JavaScript?

How you use try..catch statement in JavaScrpt?

How to use String Object in JavaScript?

How to use Date Object in JavaScript?

How to use Array Object in JavaScript?

How you use RegExp Object in JavaScript?

How to use test(),exec() and compile() methods of RegExp Object?

What is the main difference b/w Client Side JavaScript and Server Side JavaScript?

How to add Dynamic combo box at runtime in JavaScript?

JavaScript is case-sensitive or not?

What is JavaScript?

How to detect the operating system on the client machine?

How to read and write a file using javascript?

Where are cookies actually stored on the hard disk?

What can javascript programs do?

How to set a HTML document's background color?

What is reason of the "Access is Denied" ?

Is a javascript script faster than an ASP script?

Are Java and JavaScript the Same?

How to embed javascript in a web page?

How to access an external javascript file that is stored externally and not embedded?

What is the difference between an alert box and a confirmation box?

What is a prompt box?

Can javascript code be broken in different lines?

How to hide javascript code from old browsers that dont run it?

How to comment javascript code?

Name the numeric constants representing max,min values

What does javascript null mean?

What does undefined value mean in javascript?

What is the difference between undefined value and null value?

What is variable typing in javascript?

Does javascript have the concept level scope?

What are undefined and undeclared variables?

What is === operator ?

What does the delete operator do?

What does break and continue statements do?

What’s relationship between JavaScript and ECMAScript?

What are JavaScript types?

How do you convert numbers between different bases in JavaScript?

What is negative infinity?

What boolean operators does JavaScript support?

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

How about 2+5+"8"?

What looping structures are there in JavaScript?

How do you create a new object in JavaScript?

How do you assign object properties?

What’s a way to append a value to an array?

How can JavaScript make a Web site easier to use? That is, are there certain JavaScript techniques that make it easier for people to use a Web site?

What do mean by NULL in Javascript?

Javascript Interview Questions And Answers