8. 경고창


<!doctype html>
<html lang="en">

<head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.0/dist/css/bootstrap.min.css" rel="stylesheet">

    <title>Hello, world!</title>
</head>

<body>
    <!-- 실제 alert 창은 아님! -->
    <div class="alert alert-danger" role="alert">
        javascript alert창은 아닙니다!
    </div>

    <script>
        window.alert('이게 javascript alert 창입니다!!!!');
    </script>
    <!-- JavaScript -->
    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.0/dist/js/bootstrap.bundle.min.js"></script>
</body>

</html>