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<h1>XML DOM Remove Nodes</h1>
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<p class="intro">The removeChild() method removes a specified node.</p>
<p class="intro">The removeAttribute() method removes a specified attribute.</p>
<hr />
<h2>Examples
</h2>
<p>The examples below use the XML file
<a target="_blank" href="books.xml">books.xml</a>. <br />
A function, <a href="dom_loadxmldoc.asp">loadXMLDoc()</a>, in an external JavaScript is used to load the XML file.</p>
<p><a target="_blank" href="tryit.asp@filename=try_dom_removechild">Remove an
element node</a><br />
This example uses removeChild() to remove the first <book>
element.</p>
<p><a target="_blank" href="tryit.asp@filename=try_dom_removecurrent">Remove the
current element node</a><br />
This example uses parentNode and removeChild() to remove the current <book>
element.</p>
<p><a target="_blank" href="tryit.asp@filename=try_dom_removetextnode">Remove a
text node</a><br />
This example uses removeChild() to remove the text node from the first <title>
element.</p>
<p><a target="_blank" href="tryit.asp@filename=try_dom_remove_nodevalue">Clear
the text of a text node</a><br />
This example uses the nodeValue() property to clear the text node of the first
<title> element.</p>
<p><a target="_blank" href="tryit.asp@filename=try_dom_removeattribute">Remove
an attribute by name</a><br />
This example uses removeAttribute() to remove the "category"
attribute from the first <book> element.</p>
<p><a target="_blank" href="tryit.asp@filename=try_dom_removeattributenode">
Remove attributes by object</a><br />
This example uses removeAttributeNode() to remove all
attributes from all <book> elements.</p>
<hr />
<h2>Remove an Element Node</h2>
<p>The removeChild() method removes a specified node.</p>
<p>When a node is removed, all its child nodes are also removed.</p>
<p>The following code fragment will remove the first <book> element from the loaded xml:</p>
<table width="100%" border="1" class="ex" cellspacing="0" id="table18">
<tr><td>
<pre>xmlDoc=loadXMLDoc("books.xml");</pre>
<pre>y=xmlDoc.getElementsByTagName("book")[0];</pre>
<pre>xmlDoc.documentElement.removeChild(y);</pre>
</td></tr>
</table>
<p>Example explained:</p>
<ol>
<li>Load "<a target="_blank" href="books.xml">books.xml</a>"
into xmlDoc using <a href="dom_loadxmldoc.asp">loadXMLDoc()</a> </li>
<li>Set the variable y to be the element node to remove</li>
<li>Remove the element node by using the removeChild() method from the
parent node</li>
</ol>
<p><a target="_blank" href="tryit.asp@filename=try_dom_removechild">Try it
yourself</a></p>
<hr />
<h2>Remove Myself - Remove the Current Node</h2>
<p>The removeChild() method is the only way to removes a specified node.</p>
<p>When you have navigated to the node you want to remove, it is possible to
remove that node using the parentNode property and the removeChild() method:</p>
<table width="100%" border="1" class="ex" cellspacing="0" id="table44">
<tr><td>
<pre>xmlDoc=loadXMLDoc("books.xml");</pre>
<pre>x=xmlDoc.getElementsByTagName("book")[0];</pre>
<pre>x.parentNode.removeChild(x);</pre>
</td></tr>
</table>
<p>Example explained:</p>
<ol>
<li>Load "<a target="_blank" href="books.xml">books.xml</a>"
into xmlDoc using <a href="dom_loadxmldoc.asp">loadXMLDoc()</a> </li>
<li>Set the variable y to be the element node to remove</li>
<li>Remove the element node by using the parentNode property and the
removeChild() method</li>
</ol>
<p><a target="_blank" href="tryit.asp@filename=try_dom_removecurrent">Try it
yourself</a></p>
<hr />
<h2>Remove a Text Node</h2>
<p>The removeChild() method can also be used to remove a text node:</p>
<table width="100%" border="1" class="ex" cellspacing="0" id="table43">
<tr><td>
<pre>xmlDoc=loadXMLDoc("books.xml");</pre>
<pre>x=xmlDoc.getElementsByTagName("title")[0];
y=x.childNodes[0];
x.removeChild(y);</pre>
</td></tr>
</table>
<p>Example explained:</p>
<ol>
<li>Load "<a target="_blank" href="books.xml">books.xml</a>"
into xmlDoc using <a href="dom_loadxmldoc.asp">loadXMLDoc()</a> </li>
<li>Set the variable x to be the first title element node</li>
<li>Set the variable y to be the text node to remove</li>
<li>Remove the element node by using the removeChild() method from the
parent node</li>
</ol>
<p><a target="_blank" href="tryit.asp@filename=try_dom_removetextnode">Try it
yourself</a></p>
<p>It is not very common to use removeChild() just to remove the text from a
node. The nodeValue property can be used instead. See next paragraph.</p>
<hr />
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