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Example of how to use the DOM Node Deletion function removeChild ()

Source: Internet
Author: User
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Example of how to use the DOM Node Deletion function removeChild ()

This article mainly introduces the use of the DOM Node Deletion function removeChild (). The example analyzes the removeChild () function's tips for deleting a node. For more information, see

 

 

This example describes how to use the removeChild () function to delete a DOM node. Share it with you for your reference. The specific analysis is as follows:

To delete a node, DOM must be deleted at the height of the parent node. The Code is as follows:

The Code is as follows:

<Html>
<Head>
<Script type = "text/javascript">
Function t (){
// Train of thought: 1. First find the node to be deleted; 2. Find its parent node and delete the child node from the parent node perspective.
Var nodeul = document. getElementsByTagName ('ul ') [0]; // locate the parent node
Var li_lan = nodeul. children [2]; // locate the subnode to be deleted
Nodeul. removeChild (li_lan); // use the removeChild () function to delete
}
</Script>
</Head>
<Body>
<Div id = "container">
<Ul>
<Li> spring </li>
<Li> summer </li>
<Li> blue sky </li>
<Li> autumn </li>
<Li> Winter </li>
</Ul>
</Div>
<Div id = "copyul">
</Div>
<Hr/>
<Button onclick = "t ()" value = ""> delete a subnode </button>
</Body>
</Html>

 

I hope this article will help you design javascript programs.

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