jQuery UI菜单collapseAll()方法

jQuery UI由GUI部件、视觉效果和使用jQuery、CSS和HTML实现的主题组成。jQuery UI非常适合为网页构建UI界面。

语法:

$(".selector").menu( "collapseAll" );

方法：首先，添加你的项目所需的jQuery UI脚本。

<link href = “https://code.jquery.com/ui/1.10.4/themes/ui-lightness/jquery-ui.css” rel = “stylesheet”>
<script src = “https://code.jquery.com/jquery-1.10.2.js”></script>
<script src = “https://code.jquery.com/ui/1.10.4/jquery-ui.js”></script>

例子：在这个例子中，我们将使用菜单collapseAll（）方法。

<!doctype html>
<html lang="en">
  
<head>
    <meta charset="utf-8">
    <link href=
"https://code.jquery.com/ui/1.10.4/themes/ui-lightness/jquery-ui.css"
        rel="stylesheet">
    <script src="https://code.jquery.com/jquery-1.10.2.js">
    </script>
    <script src="https://code.jquery.com/ui/1.10.4/jquery-ui.js">
    </script>
  
    <style>
        .ui-menu {
            width: 200px;
        }
    </style>
  
    <script>
         $(function() { var menu =$ ("#gfg").menu();
             $("#gfg").menu()$ (menu).mouseleave(function() {
                menu.menu('collapseAll');
            });
        });
    </script>
</head>
  
<body>
    <h1>jQuery UI | menu collapseAll method</h1>
    <ul id="gfg">
        <li><a href="#">Menu</a>
            <ul>
                <li><a href="#">Submenu</a>
                    <ul>
                        <li><a href="#">
                            Sub-Submenu</a>
                        </li>
                    </ul>
                </li>
            </ul>
        </li>
    </ul>
</body>
  
</html>

输出: