JSFiddle - React, Tailwind, and code Playground
by MegaScience
JavaScript
const num = [[3, 3, 3, 3, 3], [3, 3, 3, 3, 3], [4, 3, 3, 3, 4], [2, 2, 1, 2, 1]]
let end = [0, 0, 0, 0, 0]
for(let arr of num) for(let [i, v] of arr.entries()) end[i] += v
document.body.innerHTML = end.join('<br>')
/*let num = [[3, 3, 3, 3, 3], [3, 3, 3, 3, 3], [4, 3, 3, 3, 4], [2, 2, 1, 2, 1]];
let end = [0, 0, 0, 0, 0];
for(let arr of num) {
for(let l = arr.length, i = 0; i < l; i++)
end[i] += arr[i];
}
document.body.innerHTML = end.join('<br>');*/