/*
    author: PatOnTheBack
    license: GPL-3.0 or later

    Modified from:
        https://github.com/TheAlgorithms/Python/blob/master/maths/average.py

    This script will find the average (mean) of an array of numbers.

    More about mean:
        https://en.wikipedia.org/wiki/Mean
*/

function mean(nums) {
    "use strict";
    var sum = 0;
    var avg;

    // This loop sums all values in the 'nums' array.
    nums.forEach(function (current) {
        sum += current;
    });

    // Divide sum by the length of the 'nums' array.
    avg = sum / nums.length;
    return avg;
}

// Run `mean` Function to find average of a list of numbers.
console.log(mean([2, 4, 6, 8, 20, 50, 70]));