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XML DOM | insertBefore Method

XML DOM - insertBefore Method

Hello folks! welcome back to a new edition of our tutorial on XML DOM. In this tutorial, we are going to be studying about the XML DOM insertBefore Method.

The XML DOM insertBefore method inserts a new node before a specified child node of the current node.


The following below is the syntax to use the insertBefore Method -

nodeObject.insertBefore(Node newChild, Node refChild)

Parameter Details

S.No.Parameter & Description


It is the new node to be added. It is of type Node.



It is used as a reference node before which a new node is added. It is of type Node.

Return Value

This method returns the inserted node.


Following below are the node.xml contents -

<?xml version = "1.0"?>
   <Employee category = "Technical">
   <Employee category = "Non-Technical">
   <Employee category = "Management">

The following example illustrates the usage of the insertBefore method -

<!DOCTYPE html>
         function loadXMLDoc(filename) {
            if (window.XMLHttpRequest) {
               xhttp = new XMLHttpRequest();
            else // code for IE5 and IE6 {
               xhttp = new ActiveXObject("Microsoft.XMLHTTP");
            return xhttp.responseXML;
         xmlDoc = loadXMLDoc("/dom/node.xml");

         create_e = xmlDoc.createElement("Email");

         f1 = xmlDoc.documentElement;
         f2 = xmlDoc.getElementsByTagName("Email");

         document.write("No of Email elements before insert operation: " + f2.length);
         document.write(" <br>");

         f2 = xmlDoc.getElementsByTagName("Email");
         document.write("No of Email elements after insert operation: " + f2.length);


Save file as nodemethod_insertbefore.html on the server's path (this file and node.xml should be on the same path in your server). This gives us the following output below -

No of Email elements before insert operation: 3
No of Email elements after insert operation: 4

Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we will be studying about XML DOM isDefaultNamespace Method.

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Thanks for reading and bye for now.

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