使用Javascript对无序列表进行排序 [英] Sort Unordered List with Javascript

问题描述

我一直在关注stackoverflow线程：

I have been looking at the stackoverflow thread:

我如何使用jQuery按字母顺序排序列表？

但是对于我的场景，我有层次结构：

but for my scenario, I have the hierachy:

<ul><li><a href="http://www.google.com.au">NAME_TO_SORT_ON</a></li></ul>

根据此设置，如何从此处提到的线程修改解决方案以满足我的需求我想对NAME_TO_SORT_ON中找到的所有名字进行排序的情景吗？

Based on this set-up, how can I modify the solution from thread mentioned here to cater for my scenario which has a tag as I would like to sort on all the name found in NAME_TO_SORT_ON?

谢谢。

推荐答案

我建议使用基于jQuery的解决方案，因为一旦你开始进入多个DOM级别（例如，根据更深层次的元素内容对一个级别的兄弟姐妹进行排序）简单的排序机制崩溃了。这是一个非常粗略的解决方案 - 基本上吹走了现有的HTML并用原始文本模式替换它与其他HTML。我们可以通过实际改组DOM元素来做得更好：

I would recommend using a jQuery-based solution for this, because once you start getting into multiple DOM levels (e.g. sorting siblings at one level based on the contents of elements at a deeper level) the simple sort mechanism breaks down. It's an extremely rough solution - essentially blowing away the existing HTML and replacing it in raw text mode with other HTML. We can do better by actually shuffling the DOM elements around:

function sort(list, key) {
    $($(list).get().reverse()).each(function(outer) {
        var sorting = this;
        $($(list).get().reverse()).each(function(inner) {
            if($(key, this).text().localeCompare($(key, sorting).text()) > 0) {
                this.parentNode.insertBefore(sorting.parentNode.removeChild(sorting), this);
            }
        });
    });
}

要使用它，我们将选择器传递给列表和选择器用于找到我们要排序的键：

To use it, we pass in a selector to the list and a selector to use to locate the key we want to sort on:

<ul class="toBeSorted">
    <li><a href="...">sort me</a></li>
</ul>

<script type="text/javascript">
    sort('ul.toBeSorted>li', 'a');

    //we want to sort the <li>'s in ul.toBeSorted;
    //and we want to use the text of the first and only <a>
    //in each item as the sort key
</script>

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