NonDocumentTypeChildNode.previousElementSibling
概述
previousElementSibling
返回当前元素在其父元素的子元素节点中的前一个元素节点,如果该元素已经是第一个元素节点,则返回 null
, 该属性是只读的。
语法
var prevNode = elementNodeReference.previousElementSibling;
例子
html
<div id="div-01">Here is div-01</div>
<div id="div-02">Here is div-02</div>
<li>This is a list item</li>
<li>This is another list item</li>
<div id="div-03">Here is div-03</div>
<script type="text/javascript">
var el = document.getElementById("div-03").previousElementSibling;
document.write("<p>Siblings of div-03</p><ol>");
while (el) {
document.write("<li>" + el.nodeName + "</li>");
el = el.previousElementSibling;
}
document.write("</ol>");
</script>
上面的例子会输出以下内容:
Siblings of div-03 1. LI 2. LI 3. DIV 4. DIV
浏览器兼容性
BCD tables only load in the browser