jQuery - checkbox attr과 prop의 차이
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script>
$(document).ready(function () {
$('button').click(function () {
// str은 문자열 타입
var str = $('input[type=checkbox]').attr('checked');
// val는 불리언 타입 true/false
var val = $('input[type=checkbox]').prop('checked');
alert(str + ' : ' + val);
});
});
</script>
</head>
<body>
<input type="radio" value="라디오버튼값" checked="checked">라디오버튼<br>
<input type="checkbox" value="체크박스값">체크박스<br>
<button type="button">버튼</button>
</body>
</html>