Xml Basic:

It is necessary for you to know about the xml. What is it? And how it works?
 
• Basically Xml is shorts for Extensible Markup Language.

• It is a Meta language which is used to define other languages.

• It is used for storing and transporting the data.

• It does not similar to HTML because html was designed to display the data and XML is used to describe the data.

• XML is used to aid the exchange of data.

• The data is defined in the language in the structured way.

• Tags used in the xml are not predefined, as in html.

 
XML, which represents the data passed between the server and client.
 
So the points explained above are helpful for you to understanding xml.
 
JavaScript:
 
It is not only the client-side scripting language that can be used for implementing an Ajax application. Other languages such as VBScript are also capable of the required functionality.
 
JavaScript that allows for interaction with the browser and responding to events.