30-seconds-of-code/snippets/average.md

title, tags

title	tags
average	math,array,beginner

Calculates the average of two or more numbers.

• Use Array.prototype.reduce() to add each value to an accumulator, initialized with a value of 0, divide by the length of the array.

const average = (...nums) => nums.reduce((acc, val) => acc + val, 0) / nums.length;

average(...[1, 2, 3]); // 2
average(1, 2, 3); // 2