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JS operates DOM to delete nodes

php中世界最好的语言Original: 2018-05-02 11:17:511492browse

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(&#39;di&#39;);
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>
</html>

I believe you have mastered the method after reading the case in this article. For more exciting things, please pay attention to php Other related articles on the Chinese website!

JS operates DOM to delete nodes

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