30-seconds-of-code/snippets_archive/squareSum.md

squareSum

Squares each number in an array and then sums the results together.

Use Array.prototype.reduce() in combination with Math.pow() to iterate over numbers and sum their squares into an accumulator.

const squareSum = (...args) => args.reduce((squareSum, number) => squareSum + Math.pow(number, 2), 0);

squareSum(1, 2, 2); // 9