please help with JS object

Hi,

I am just practising some JS questions.
I need to create a circle object with the Object() constructor and a method that will calculate
its circumference.

Can you please advise what is wrong with my code:

<html>
<head><title>Object object</title>
<script type="text/javascript">

var circle = new Object(radius);
circle.radius = radius;
circle.calcCircumference;

function calcCircumference() {
      return (Math.PI*Math.Pow(radius,2));
}

</script>
</head>
<body bgColor="#EOFFFF">
<script type="text/javascript">
alert(circle.calcCircumference(3);

</script>
</body>
</html>

thanks
jecommeraAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

micropc1Commented:
try...

<html>
<head><title>Object object</title>
<script type="text/javascript">

var circle = new Object();
var circle.radius = 0;

circle.setRadius = function(radius) {
	this.radius = radius;
}

circle.getRadius = function() {
	return this.radius;
}

circle.calcCircumference = function () {
      return (Math.PI*Math.pow(this.radius,2));
}

</script>
</head>
<body bgColor="#EOFFFF">
<script type="text/javascript">
circle.setRadius(3);
alert(circle.calcCircumference());

</script>
</body>
</html>

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
JavaScript

From novice to tech pro — start learning today.