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>querySelectorAll()</title>
</head>
<body>
<p class="content">querySelectorAll() 메서드1</p>
<p class="content">querySelectorAll() 메서드2</p>
<script>
// 태그 선택
let list = document.querySelectorAll("p.content");
for(let i=0; i<list.length; i++) {
// 텍스트 굵기 변경
list[i].style.fontWeight = "bold";
}
</script>
</body>
</html>
Java
복사