export function sum(values) {
  let soma = 0;
  for (let index = 0; index < values.length; index += 1) {
    soma = soma + values[index];
  }
  return soma;
}
console.log(sum([])); //(0)
console.log(sum([1])); //(1)
console.log(sum([1, 2])); //(3)
console.log(sum([1, 2, 3])); //(6)
console.log(sum([1, 2, 3, 4])); //(10)
console.log(sum([1, 2, 3, 4, 5])); //(15)
console.log(sum([4, 6, 12, 5])); //(27)
console.log(sum([9, 234, 312, 999, 21, 2311])); //(3886)
console.log(sum([533, 234, 23423, 32, 48876])); //(73098)
console.log(sum([-1, 5, -10, -45]))//(-51)
console.log(sum([-2, -7, -31]))//(-40)