[本]278-29日目JavaScriptコードフォーミュラ

<h1>
  <span>-</span>
  '확인하기' 란 클릭하면 하이픈 제거
</h1>
<div class="container">
  <input type="tel" id="phoneNumberText" placeholder="전화번호">
  <button id="submitButton" type="submit">확인하기</button>
</div>
<p class="phone-desc">전화번호:</p>

span {
  background-color: rgb(239, 239, 239);
  padding: 0 12px;
}

input {
  font-size: 32px;
  height: 54px;
  vertical-align: middle;
}

button {
  padding: 10px;
  font-size: 32px;
  height: 60px;
  vertical-align: middle;
}

.phone-desc {
  font-size: 32px;
}

window.onload = function () {
  const submitButton =document.querySelector('#submitButton');
  let phoneDesc = document.querySelector('.phone-desc');

  function submitButtonClick() {
    const phoneNumber = document.querySelector('#phoneNumberText');
    const phoneNumberValue = phoneNumber.value;
    phoneDesc.textContent = phoneDesc.textContent + ' ' + phoneNumberValue.replace(/-/g, '');
  }

  submitButton.addEventListener('click', submitButtonClick);
};