DOM is a platform independent, World Wide Web Consortium (W3C) standard form of representation of structured documents as an object-oriented model. It is an application programming interface so as to access HTML and XML documents.
What is the HTML DOM?
The HTML DOM API specializes and adds the functionality to relate to HTML documents and elements. It addresses the issues of backwards compatibility with the Level 0 of DOM and provides mechanisms for common and frequent operations on HTML documents.
What is the XML DOM?
Microsoft’s MSXML DOM provides an API for working with XML data. It also provides a programmatic representation of XML documents, fragments, nodes, or node-sets. It is a W3C standard form of XML representation. XML DOM objects can be used in XML applications written in C/C++, VB, VBScript and JScript.
What is the XMLHttpRequest Object?
The XMLHttpRequest object is used to connect to the server through http. Scripts use it to do so programmatically.
The EventTarget interface needs to be implemented if an object implements the XMLHttpRequest interface. Also, an XMLHttpRequest() constructor needs to be provided by objects that implement the Window interface.
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