DOM - NamedNodeMap Object Method - item ()


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The method item () returns the indexth item in the map. If index is greater than or equal to the number of nodes in this map, this returns null.

Syntax

Following is the syntax for the usage of the item() method.

nodemapObject.item(index)

S.No. Parameter & Description
1

index

It specifies the position of the item into the map. It is of type unsigned long.

This method returns the indexth item in the map.

Example

node.xml contents are as below −

<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 item() method −

<!DOCTYPE html>
<html>
   <body>
      <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;

         x = xmlDoc.getElementsByTagName('Employee');


         item_name = x.item(0).attributes.getNamedItem("category");
         document.write("Get the specified item value : ")
         document.write( item_name.value );
     </script>
   </body>
</html>

Execution

Save this file as namednodemapmethod_item.htm on the server path (this file and node_methods.xml should be on the same path in your server). We will get the output as shown below −

Get the specified item value : Technical
dom_namednodemap_object.htm
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