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XML DOM | DocumentType publicId Attribute

XML DOM - DocumentType publicId 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 DocumentType publicId Attribute.

The DOM DocumentType publicId attribute returns the public identifier of the external subset.


The following below is the syntax to use the DocumentType publicId Attribute -



Following are the notation.xml contents -

<?xml version = "1.0"?>
<!DOCTYPE address [
   <!ELEMENT address (#PCDATA)>
   <!NOTATION name PUBLIC "Kennedy">
   <!ATTLIST address category NOTATION (name) #REQUIRED>

<address name = "Kennedy">Hello world!!!!!!</address>

The following example illustrates the usage of the DocumentType publicId attribute -

<!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/notation.xml");
         var notations = xmlDoc.doctype.notations;
         document.write("notations: "+notations);
         document.write("Item "+notations.getNamedItem('Kennedy'));


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

notations: undefined

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 DocumentType systemId Attribute.

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Thanks for reading and bye for now.

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