This will return the ratio of a circle's circumference to its diameter, approximately 3.14159.
Grammar
Math.PI
Example:
<html>
<head>
<title>JavaScript Math PI Property</title>
</head>
<body>
<script type="text/javascript">
var property_value = Math.PI
document.write("Property Value is : " + property_value);
</script>
</body>
</html>
This will produce the following results:
Property Value is : 3.141592653589793
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