XML DOM cloneNode() Method
Definition and Usage
The cloneNode() method can create an exact copy of the specified node.
This method can return the copied node.
Syntax:
nodeObject.cloneNode(include_all)
| Parameter | Description |
|---|---|
| include_all | Required. If the logical parameter is set to true, the cloned node will clone all child nodes of the original node. |
Return value
Copy of the current node.
Description
This method will copy and return a copy of the node it calls. If a parameter of true is passed to it, it will also recursively copy all descendants of the current node. Otherwise, it will only copy the current node.
The returned node does not belong to the document tree, and its parentNode property is null.
When copying an Element node, all its attributes will be copied. However, it should be noted that the event listener functions registered on the current node will not be copied.
Example
In all examples, we will use the XML file books.xml, and JavaScript functions loadXMLDoc().
The following code snippet can clone the first <book> node and then add it to the end of the node list:
xmlDoc=loadXMLDoc("books.xml");
var x=xmlDoc.getElementsByTagName('book')[0];
var cloneNode=x.cloneNode(true);
xmlDoc.documentElement.appendChild(cloneNode);
//Output all titles
var y=xmlDoc.getElementsByTagName("title");
for (i=0;i<y.length;i++)
{
document.write(y[i].childNodes[0].nodeValue);
document.write("<br />");
}
Output:
Everyday Italian Harry Potter XQuery Kick Start Learning XML Everyday Italian
