Try it
function calculateCircumference(radius) {
return 2 * Math.PI * radius;
}
console.log(Math.PI);
// Expected output: 3.141592653589793
console.log(calculateCircumference(10));
// Expected output: 62.83185307179586
Value
Property attributes of Math.PI | |
|---|---|
| Writable | no |
| Enumerable | no |
| Configurable | no |
Description
Because PI is a static property of Math, you always use it as Math.PI, rather than as a property of a Math object you created (Math is not a constructor).
Examples
Using Math.PI
The following function uses Math.PI to calculate the circumference of a circle with a passed radius.
js
function calculateCircumference(radius) {
return Math.PI * (radius + radius);
}
calculateCircumference(1); // 6.283185307179586
Specifications
| Specification |
|---|
| ECMAScript® 2027 Language Specification # sec-math.pi |