[자바스크립트] 폼(form) 객체

1) 폼 객체

 

<form name="myform" id="regform">

   <input type="text" name="userid" id="id">

</form>

 

2) 폼의 접근

 

const frm = document.myform; //name을 씀
const frm = document.getElementById('regform'); //id를 씀

 

3) 아이디 value 접근

 

const id = document.myform.userid.value; //name을 씀
const id = frm.userid.value; //name을 씀
const id = frm.elements[0].value;
const id = frm.elements['userid'].value;
const id = document.getElementById('id').value;