<!DOCTYPE html>
<html lang="en">
<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>Document</title>
</head>
<body>
<li id="active">test</li>
<script>
console.log(document.getElementById("active").tagName); //LI, tagName은 읽기전용
</script>
</body>
</html>
Backend Engineer