Cylinder Volume

/* Write a JavaScript function calcCylinderVol(arr) that accepts the following parameters:
radius and the height of a straight circular cylinder. The function calculates
the volume of the cylinder. Write JS program cylinderVol.js that calculates the volume of
a few cylinders. The result should be printed on the console. */

"use strict";

function calcCylinderVol(arr) {
    return Math.PI * arr[0] * arr[0] * arr[1];
}

console.log(calcCylinderVol([2, 4]).toFixed(3));
console.log(calcCylinderVol([5, 8]).toFixed(3));
console.log(calcCylinderVol([12, 3]).toFixed(3));