03. Same Numbers js advanced

function solve(arg) {
  const numArr = arg.toString().split('').map(Number);
  const firstDig = numArr[0];
  const isSame = numArr.every((num) => num === firstDig);
  const result = numArr.reduce((agrr, curnV) => agrr + curnV, 0);

  console.log(isSame);
  console.log(result);
}