Introducing XML in AJAX
Anyone who has carried out any HTML markup will already be somewhat
familiar with the nature of XML code. XML (eXtensible Markup Language)
has many similarities in markup style to HTML.
However, hereas HTML is intended to determine how web pages are displayed, XML has a rather more wide-ranging use. XML documents can be used in all manner of data storage and data exchange applications ranging from document storage and retrieval to roles traditionally fulfilled by database programs.
Why Do I Need To Know This?
One of the many uses of XML is for the transfer of structured information between applications. In Ajax you can use XML to return information from the server to your Ajax application, where it may be parsed and used.
What Is (and Isn’t) Covered in This Topic
In common with the other lessons in this section of the book, we do not attempt to offer a complete and thorough treatise on XML. Rather, this lesson covers the basics of the language and its application, concentrate ng mainly on those aspects relevant to your work with Ajax.
However, hereas HTML is intended to determine how web pages are displayed, XML has a rather more wide-ranging use. XML documents can be used in all manner of data storage and data exchange applications ranging from document storage and retrieval to roles traditionally fulfilled by database programs.
Why Do I Need To Know This?
One of the many uses of XML is for the transfer of structured information between applications. In Ajax you can use XML to return information from the server to your Ajax application, where it may be parsed and used.
What Is (and Isn’t) Covered in This Topic
In common with the other lessons in this section of the book, we do not attempt to offer a complete and thorough treatise on XML. Rather, this lesson covers the basics of the language and its application, concentrate ng mainly on those aspects relevant to your work with Ajax.
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