test

by Pavel_FD2

JavaScript

const arr = [2,1,4,7];
const sumSq = x => x.reduce((sum, n) => (n%2===0) ? sum += n*n : sum+0, 0);
console.log(sumSq(arr));
console.log(sumSq([3, 4, 1, 2, 6, 19, 2]));