Javascript form.elements()

<form id="myForm">
  <input name="user" type="text" />
  <input name="menu" type="text" />
  <button type="submit">제출</button>
</form>

const myForm = document.getElementById('myForm');

// 폼 제출 이벤트
myForm.addEventListener('submit', function(e) {
  e.preventDefault();
  // .elements로 input 접근
  const userValue = myForm.elements['user'].value; // name="user"
  const menuValue = myForm.elements['menu'].value; // name="menu"

  console.log('user:', userValue, 'menu:', menuValue);
});