odin-default-js-exercises/sumAll/sumAll.js

17 lines
344 B
JavaScript

const sumAll = function(min, max) {
if (typeof min !== "number" || typeof max !== "number") return "ERROR";
if (min < 0 || max < 0) return "ERROR";
if (min > max) {
const temp = min;
min = max;
max = temp;
}
let sum = 0;
for (let i = min; i < max + 1; i++) {
sum += i;
}
return sum;
};
module.exports = sumAll;