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XML DOM | Element Object getElementsByTagNameNS Method

XML DOM - Element Object getElementsByTagNameNS Method

Hello folks! welcome back to a new edition of our tutorial on XML DOM. In this tutorial, we will be discussing about the XML DOM Element Object getElementsByTagNameNS Method.

The getElementsByTagNameNS Method is used to return a NodeList of all descendant Elements with a given local name and the namespace URI in a document order.


The following below is the syntax to use the getElementsByTagNameNS method -

elementObj.getElementsByTagNameNS(namespaceURI,  localName)

Parameter Details

S.No.Parameter & Description


Is the namespace URI of elements to look for.



Is either the local name of elements to look for or the special value "*", which matches all elements.

Return Value

This method returns a new NodeList object containing all the matched elements.


Following are the node.xml contents -

<?xml version = "1.0"?>
   <Employee xmlns:e = "http://www.webdesigntutorialz.com/technical/" category = "technical">
      <e:FirstName e:lang = "en">Kennedy</e:FirstName>
   <Employee xmlns:n = "http://www.webdesigntutorialz.com/non-technical/" category = "non-technical">
      <n:FirstName n:lang = "en">Stephanie</n:FirstName>

The below example illustrates the usage of Element Object getElementsByTagNameNS 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_ns.xml");
         x = xmlDoc.getElementsByTagNameNS(ns, 'FirstName');
          document.write(x[0].nodeName); // returns: e:FirstName


Save this file as elementmethod_getelementsbytagnamens.html on the server path (this file and node.xml should be on the same path in your server). This is going to give us the following output below -


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 the Element Object hasAttribute Method.

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Thanks for reading and bye for now.

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