This time I will bring you the use of JS to delete DOM nodes, what are the precautions for deleting DOM nodes using 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 nodes, this example will use removeChild()## of DOM object #Method to dynamically delete the selected text on the page.
Three Code
<!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> </html>
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