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 Attribute Object specified Attribute.
The specified attribute returns the boolean value true if the attribute value exists in the document.
The specified attribute returns the boolean value true if the attribute value exists in the document.
Syntax
The following is the syntax to use the XML DOM Attribute Object specified Attribute -
attrObject.specified
Return Value
This Attribute returns true if the attribute value exists in the document.
Example
Following are the node.xml contents -
<?xml version = "1.0" encoding = "UTF-8" standalone = "no" ?> <Company> <Employee category = "Technical" id = "firstelement"> <FirstName>Kennedy</FirstName> <LastName>Nkpara</LastName> <ContactNo>1234567890</ContactNo> <Email>kennedynkpara@xyz.com</Email> </Employee> <Employee category = "Non-Technical"> <FirstName>Stephanie</FirstName> <LastName>Francis</LastName> <ContactNo>1234667898</ContactNo> <Email>stephaniefrancis@xyz.com</Email> </Employee> <Employee category = "Management"> <FirstName>Justice</FirstName> <LastName>Douglas</LastName> <ContactNo>1234562350</ContactNo> <Email>justicedouglas@xyz.com</Email> </Employee> </Company>
The following example illustrates the usage of the Attribute Object specified attribute -
<!DOCTYPE html> <html> <head> <script> function loadXMLDoc(filename) { if (window.XMLHttpRequest) { xhttp = new XMLHttpRequest(); } else // code for IE5 and IE6 { xhttp = new ActiveXObject("Microsoft.XMLHTTP"); } xhttp.open("GET",filename,false); xhttp.send(); return xhttp.responseXML; } </script> </head> <body> <script> xmlDoc = loadXMLDoc("/dom/node.xml"); x = xmlDoc.getElementsByTagName('Employee'); document.write("True if attribute is present else false : "); document.write(x.item(0).attributes[0].specified); </script> </body> </html>
Output
Save file as attributeobject_specified.htm on the server's path (this file and the node.xml should be on the same path in your server). This is going to give us the following output below -
True if attribute is present else false : true
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 Attribute Object value Attribute.
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Feel free to ask your questions where necessary and we will attend to them as soon as possible. If this tutorial was helpful to you, you can use the share button to share this tutorial.
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Thanks for reading and bye for now.