<html lang="ko">
<head>
<meta charset="UTF-8">
<title>prop() 메서드</title>
<script src="jquery-3.3.1.min.js"></script>
</head>
<body>
<input type="checkbox" id="html"><label for="html">html</label>
<input type="checkbox" id="css"><label for="css">css</label>
</body>
</html>
$(document).ready(function () {
console.log($("input:checkbox").eq(0).attr("checked"));
console.log($("input:checkbox").eq(1).prop("checked"));
$("input:checkbox").eq(0).attr("checked", "checked");
$("input:checkbox").eq(1).prop("checked", true);
console.log($("input:checkbox").eq(0).attr("checked"));
console.log($("input:checkbox").eq(1).prop("checked"));
});
This Pen doesn't use any external CSS resources.