odin-default-js-exercises/05_sumAll/sumAll.js

21 lines
472 B
JavaScript

const sumAll = function(num1, num2) {
let final = 0;
if (num1 < 0 || num2 < 0 || typeof num1 != 'number' || typeof num2 != 'number') {
return "ERROR";
} else if (num2 > num1) {
for (let i = num1; i <= num2; i++) {
final += i;
}
} else if (num1 > num2) {
for (let i = num2; i <= num1; i++) {
final += i;
}
}
return final;
};
// Do not edit below this line
module.exports = sumAll;