}
}

function drawBall(number, $parent) {
  const $ball = document.createElement('div');
  $ball.className = 'ball';

  colorize(number, $ball); // 공을 생성할 때 색 지정

  $ball.textContent = number;
  $parent.appendChild($ball);
}
const setTimeoutPromise = (ms) => new Promise((resolve, reject) => {
  setTimeout(resolve, ms);
});

let clickable = true;

$form.addEventListener('submit', async (event) => {
  event.preventDefault();

  if (!clickable) {
    return;
  }
  clickable = false; // 클릭 제한
  $result.innerHTML = '당첨숫자: ';
  $bonus.innerHTML = '보너스숫자: ';

  const string = event.target.input.value;
  (중략)