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- XML DOM - Remove Node
- XML DOM - Clone Node
- XML DOM Objects
- DOM - Node Object
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- DOM - DOMImplementation
- DOM - DocumentType Object
- DOM - ProcessingInstruction
- DOM - Entity Object
- DOM - EntityReference Object
- DOM - Notation Object
- DOM - Element Object
- DOM - Attribute Object
- DOM - CDATASection Object
- DOM - Comment Object
- DOM - XMLHttpRequest Object
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- XML DOM Useful Resources
- XML DOM - Quick Guide
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- XML DOM - Discussion
DOM - Node Object Method - cloneNode
The method cloneNode is used to create a duplicate node, when overridden in a derived class. It returns the duplicated node.
Syntax
Following is the syntax for the usage of the cloneNode method.
nodeObject.cloneNode(boolean deep)
S.No. | Parameter & Description |
---|---|
1 |
deep If true, recursively clones the subtree under the specified node; if false, clone only the node itself (and its attributes, if it is an Element). |
This method returns duplicate Node.
Example
node.xml contents are as below −
<?xml version = "1.0"?> <Company> <Employee category = "Technical"> <FirstName>Tanmay</FirstName> <LastName>Patil</LastName> <ContactNo>1234567890</ContactNo> <Email>tanmaypatil@xyz.com</Email> </Employee> <Employee category = "Non-Technical"> <FirstName>Taniya</FirstName> <LastName>Mishra</LastName> <ContactNo>1234667898</ContactNo> <Email>taniyamishra@xyz.com</Email> </Employee> <Employee category = "Management"> <FirstName>Tanisha</FirstName> <LastName>Sharma</LastName> <ContactNo>1234562350</ContactNo> <Email>tanishasharma@xyz.com</Email> </Employee> </Company>
Following example demonstrates the usage of the cloneNode method −
<!DOCTYPE html> <html> <head> <script> function loadXMLDoc(filename) { if (window.XMLHttpRequest) { xhttp = new XMLHttpRequest(); } else // code for IE5 and IE6 { xhttp = new ActiveXObject("Microsoft.XMLHTTP"); } xhttp.open("GET",filename,false); xhttp.send(); return xhttp.responseXML; } </script> </head> <body> <script> xmlDoc = loadXMLDoc("/dom/node.xml"); x = xmlDoc.getElementsByTagName('Employee')[0]; clone_node = x.cloneNode(true); xmlDoc.documentElement.appendChild(clone_node); document.write("Following list has cloned node: "); document.write("<br>"); y = xmlDoc.getElementsByTagName("LastName"); for (i = 0; i < y.length; i ++) { document.write(y[i].childNodes[0].nodeValue); document.write("<br>"); } </script> </body> </html>
Execution
Save this file as nodemethod_clonenode.htm on the server path (this file and node.xml should be on the same path in your server). We will get the output as shown below −
Following list has cloned node : Patil Mishra Sharma Patil
You will notice that the first LastName Patil is cloned.
dom_node_object.htm
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