This time I will bring you JS operation DOM deletion node, JS operation DOM deletion node What are the precautions, the following is a practical case, let's take a look.
1 Introduction
Deleting nodes is achieved by using the removeChild() method.
removeChild() method is used to delete a child node.
obj. removeChild(oldChild)oldChild: Indicates the node that needs to be deleted.
Second application
Delete nodes, this example will use removeChild()## of DOM object #Method to dynamically delete the selected text on the page.
三码
<!DOCTYPE html>
<html>
<head>
<title>删除节点</title>
<script language="javascript">
<!--
function delNode()
{
var deleteN=document.getElementById('di');
if(deleteN.hasChildNodes())
{
deleteN.removeChild(deleteN.lastChild);
}
}
-->
</script>
</head>
<body>
<h1>删除节点</h1>
<p id="di">
<p>第一行文本</p>
<p>第二行文本</p>
<p>第三行文本</p>
</p>
<form>
<input type="button" value="删除" onclick="delNode();"/>
</form>
</body>
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