Fix the string thrown — find the bug

function setAge(age) {
  if (age < 0) {
    throw "age cannot be negative";
  }
  return age;
}
let message;
try {
  setAge(-5);
} catch (error) {
  message = error.message === undefined ? "no message to read" : error.message;
}
document.querySelector('#out').textContent = message;