jquery 收藏功能

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>jQuery 收藏功能</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
</head>
<body>
    <button id="favoriteBtn">收藏本页</button>

    <script>
        $(document).ready(function() {
            $('#favoriteBtn').click(function() {
                if (window.sidebar && window.sidebar.addPanel) { // Firefox
                    window.sidebar.addPanel(document.title, window.location.href, "");
                } else if (window.external && ('AddFavorite' in window.external)) { // Internet Explorer
                    window.external.AddFavorite(location.href, document.title);
                } else if (window.opera && window.print) { // Opera
                    return true;
                } else { // Other browsers (Chrome, Safari)
                    alert('请按 Ctrl+D 手动收藏本页。');
                }
            });
        });
    </script>
</body>
</html>