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XML DOM | previousSibling Attribute

XML DOM - previousSibling Attribute

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 previousSibling attribute.

The XML DOM previousSibling attribute can specify the node immediately preceding the current node.


The following below is the syntax to use the previousSibling attribute -



Following below are the node.xml contents -

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

The following example below illustrates the usage of the previousSibling attribute -

<!DOCTYPE html>
         if (window.XMLHttpRequest) {
            xmlhttp = new XMLHttpRequest();
         } else {
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
         xmlDoc = xmlhttp.responseXML;

         function get_previousSibling(p) {
            a = p.previousSibling;
            while (a.nodeType != 1) {
               a = a.previousSibling;
            return a;

         x = get_previousSibling(xmlDoc.getElementsByTagName("Email")[0]);
         document.write("The previous sibling of Email is : ");


Save file as nodeattribute_previoussibling.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 -

The previous sibling of Email is : ContactNo

Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about XML DOM textContent Attribute.

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