JAVASCRIPT

reduce average javascript

function average(nums) {
  	// nums.length is the important part
    return nums.reduce((a, b) => (a + b)) / nums.length;
}

javascript: reduce function, mean/average

function mean2(numbers) {
    const total = numbers.reduce(function(sum, number) {
        return sum + number;
    });
    return total / numbers.length;
}