Jquery 访问远程父母

发布于 2024-12-02 03:57:20 字数 1582 浏览 1 评论 0原文

考虑下拉菜单的以下 HTML 结构：

<ul class="tabMenu">
    <li><a href="#">Games</a>
     <div id="sub">
        <ul>
          <li><a href="#">Main</a></li>                         
          <li><a href="#">3D</a></li>
       </ul>
     </div>
    </li>
    <li><a href="#">Videos</a>
         <div id="sub">
            <ul>
              <li><a href="#">Main</a></li>                         
              <li><a href="#">3D</a></li>
           </ul>
        </div>
    </li>
</ul>

在此菜单下，我使用 Jquery 编写一些字符串（Home 是默认值），它告诉用户他在哪里：

<div class="Pointer"><a href="#">Home</a></div>

以下 Jquery 用于检测触发了哪个类别/子类别

$('.tabMenu li a').click(function() {
            //get current link
            var currentLink = $(this);
            //get link text
            var linkText = currentLink.text();
            //Remove all activeTab classes
            $('.activeTab').removeClass('activeTab');
            //Add selected class with activeTab
            currentLink.parent().addClass("activeTab");
                    //Change pointer value according to the click
            $('.Pointer a').html(linkText);
        });

：如果用户从“视频”下拉列表中单击子类别“Main”，Jquery 函数应返回类似“Videos->Main”的字符串；如果用户从“Games”中选择“Main”，则返回“Games->Main”。无论是从“游戏”还是“视频”中单击，此代码都仅提供 Main 任何帮助将不胜感激。

原文

Consider the following HTML structure for drop-down menu:

<ul class="tabMenu">
    <li><a href="#">Games</a>
     <div id="sub">
        <ul>
          <li><a href="#">Main</a></li>                         
          <li><a href="#">3D</a></li>
       </ul>
     </div>
    </li>
    <li><a href="#">Videos</a>
         <div id="sub">
            <ul>
              <li><a href="#">Main</a></li>                         
              <li><a href="#">3D</a></li>
           </ul>
        </div>
    </li>
</ul>

Under this menu I write some string using Jquery(Home is the default value) which tells the user where he is:

<div class="Pointer"><a href="#">Home</a></div>

The following Jquery is used for detecting which category/subcategory is trigerred:

$('.tabMenu li a').click(function() {
            //get current link
            var currentLink = $(this);
            //get link text
            var linkText = currentLink.text();
            //Remove all activeTab classes
            $('.activeTab').removeClass('activeTab');
            //Add selected class with activeTab
            currentLink.parent().addClass("activeTab");
                    //Change pointer value according to the click
            $('.Pointer a').html(linkText);
        });

The Jquery function should return string which looks like Videos->Main if the user clicks subcategory 'Main' from the drop-down on 'Videos' and Games->Main if the user chooses Main from Games. This code gives only Main no matter if it was clicked from 'Games' or 'Videos' Any help will be greatly appreciated.

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

番薯 2024-12-09 03:57:20

您可以使用 jQuery closest 获取与选择器匹配的第一个祖先元素，从当前元素开始并在 DOM 树中向上推进。

工作演示

$('.tabMenu li a').click(function() {
            //get current link
            var currentLink = $(this);
            //get link text
            var linkText = currentLink.text();

            //Remove all activeTab classes
            $('.activeTab').removeClass('activeTab');
            //Add selected class with activeTab
            currentLink.parent().addClass("activeTab");
                    //Change pointer value according to the click
            linkText = currentLink.closest('div').closest("li").children("a").text() + " > " + linkText ;
            $('.Pointer a').html(linkText);
        });

You can use jQuery closest which get the first ancestor element that matches the selector, beginning at the current element and progressing up through the DOM tree.

Working demo

$('.tabMenu li a').click(function() {
            //get current link
            var currentLink = $(this);
            //get link text
            var linkText = currentLink.text();

            //Remove all activeTab classes
            $('.activeTab').removeClass('activeTab');
            //Add selected class with activeTab
            currentLink.parent().addClass("activeTab");
                    //Change pointer value according to the click
            linkText = currentLink.closest('div').closest("li").children("a").text() + " > " + linkText ;
            $('.Pointer a').html(linkText);
        });

回复收藏 0 原文

水水月牙 2024-12-09 03:57:20

试试这个：

// Will only affect subcategory links
$('.tabMenu li #sub a').click(function() {
  var parentCategory = $(this).parent().parents('li:first').children('a:first').html()
})
// Will only affect "Games" and "Videos" links
$('.tabMenu > li > a').click(function() {
  var category = $(this).html() 
})

当然，您可以在选择器 ".tabMenu li #sub a" 中使用它们，但我认为这种方式更干净。

Try this:

// Will only affect subcategory links
$('.tabMenu li #sub a').click(function() {
  var parentCategory = $(this).parent().parents('li:first').children('a:first').html()
})
// Will only affect "Games" and "Videos" links
$('.tabMenu > li > a').click(function() {
  var category = $(this).html() 
})

Of course you could use them both in the selector ".tabMenu li #sub a" but I think this way is cleaner.

回复收藏 0 原文