영상
개념
<!DOCTYPE html>
<html lang="ko">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>getElementsByName()</title>
</head>
<body>
<h3 id="target">과목 선택</h3>
HTML<input type="checkbox" name="subject" value="html">
CSS<input type="checkbox" name="subject" value="css">
JavaScript<input type="checkbox" name="subject" value="javascript">
<!-- JavaScript<input type="checkbox" name="subject" value="javascript" checked> -->
<script>
let list = document.getElementsByName("subject");
// 체크박스 체크로 변경
for(let i=0; i<list.length; i++) {
list[i].checked = true;
}
</script>
</body>
</html>
Java
복사