XML DOM | Element Object getElementsByTagName Method

XML DOM - Element Object getElementsByTagName 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 getElementsByTagName Method.

The getElementsByTagName Method gives the value of the specified element.

Syntax

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

elementObj.getElementsByTagName(name)

Parameter Details

S.No.Parameter & Description
1

Name

It holds the name of the attribute to retrieve.


Return Value

This XML DOM method returns the name of the tag.

Example

Following are the node.xml contents -

<?xml version = "1.0"?>
<Company>
   <Employee category = "Technical">
      <FirstName>Kennedy</FirstName>
      <LastName>Nkpara</LastName>
      <ContactNo>1234567890</ContactNo>
      <Email>kennedynkpara@xyz.com</Email>
   </Employee>
</Company>


The following example illustrates the usage of Element Object getElementsByTagName method -

<!DOCTYPE html>
<html>
   <body>
      <div>
         <b>FirstName:</b> <span id = "FirstName"></span>
         <b>LastName:</b> <span id = "LastName"></span>
         <b>Category:</b> <span id = "Employee"></span>
      </div>
      <script>
         if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari
            xmlhttp = new XMLHttpRequest();
         }
         else {// code for IE6, IE5
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
         }
         xmlhttp.open("GET","/dom/node.xml",false);
         xmlhttp.send();
         xmlDoc = xmlhttp.responseXML;

         document.getElementById("FirstName").innerHTML=
         xmlDoc.getElementsByTagName("FirstName")[0].childNodes[0].nodeValue;
         document.getElementById("LastName").innerHTML=
         xmlDoc.getElementsByTagName("LastName")[0].childNodes[0].nodeValue;
         document.getElementById("Employee").innerHTML=
         xmlDoc.getElementsByTagName("Employee")[0].attributes[0].nodeValue;

      </script>
   </body>
</html>

Output

Save this file as elementmethod_getelementsbytagname.html on the server's 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 -

FirstName: Kennedy
LastName: Nkpara
Category: technical


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 getElementsByTagNameNS Method.

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