Introduction
"Everything" in JavaScript is an Object may be a String, a Number, an Array, a Date...In JavaScript, an object is data, with properties and methods.
In real life object are a bike. The features of the bike include name, model, weight, color, etc. But now here we discuss about creating a object with methods
Now I will give you an example showing you how to create methods for your objects. As an example, I will create a circle as my object. The methods will be
circle_name.area()
return the area of circle(pi*r2)
circle_name.circumfrrence()
return the circumference of circle(2*pi*r)
The complete code for web page which are consist a creation a object with methods in java script as follows
<!DOCTYPE html>
<html>
<body>
<script>
function circle(x, y, r)
{
this.xcoord = x;
this.ycoord = y;
this.radius = r;
this.circleArea = getArea;
this.retCirc = function ()
{
return (Math.PI * this.radius * 2);
};
this.mvBy = mvCclBy;
}
function getArea()
{
return (Math.PI * this.radius * this.radius);
}
function mvCclBy(xDis, yDis)
{
this.xcoord += xDis;
this.ycoord += yDis;
}
var testcircle = new circle(3, 4, 5);
testcircle.mvBy(2, 3);
window.alert('The area of the circle is ' + testcircle.circleArea());
window.alert('The circumference is ' + testcircle.retCirc());
</script>
</body>
</html>
Output
After running the above code we'll find the following output
![]()
![]()
![]()
![Clipboard02.jpg]()
The next output will be
![im.jpg]()