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Summary of JS methods to delete DOM object nodes

php中世界最好的语言Original: 2018-06-11 14:29:451979browse

This time I will bring you a summary of the method of deleting DOM object nodes in JS. What are the precautions for deleting DOM object nodes in JS? 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 the node. This example will dynamically delete the page through the removeChild() method of the DOM object. Selected text.

Three Code

<!DOCTYPE html>
<html>
<head>
<title>w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 information, please pay attention to other related articles on the PHP Chinese website!

Summary of JS methods to delete DOM object nodes

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