javascript - 使用 JavaScript 重新排序 li 元素

Question

我有一个按字母顺序显示位置的 li，我想获取列表的元素并以不同的顺序返回。

    <li class="single-contact-location">
      <span>Location</span> 
     ALocation, BLocation, CLocation, DLocation, ELocation, FLocation
    </li>   

假设 BLocation、ALocation、CLocation、DLocation、ELocation、FLocation

与

var li = document.getElementsByClassName("single-contact-location")[0];

我得到了 li 类和带有位置的跨度，但跨度让我感到困惑，因为我无法抓取元素并重新排序。

Answer 1

您可以使用以下代码读取位置列表:

/* querySelector: IE8+ support */
var span = document.querySelector(".single-contact-location > span");

/* get the next node after the span */
var textNodeAfterSpan = span.nextSibling;

/* Get the content of the text node and split it */
var locationList = textNodeAfterSpan.nodeValue.split(', ');

/* Reorder it */
var mainLocation = locationList[1];
locationList[1] = locationList[0];
locationList[0] = mainLocation;

/* Rewrite it */
textNodeAfterSpan.nodeValue = ' ' + locationList.join(', ');

<li class="single-contact-location">
  <span>Location</span> 
  ALocation, BLocation, CLocation, DLocation, ELocation, FLocation
</li>