Hi everyone in this blog I’m explaining about introduction of ajax.
AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the entire page.
We can also define Ajax is a combination of client side technologies that provides asynchronous communication between the user interface and the web server so that partial page rendering occurs instead of complete page post back.
Using Ajax technologies we can observe in Google Maps, Gmail, YouTube, and Facebook tabs.
AJAX is Based on Internet Standards:
Let us know about the basic information each technology uses in Ajax.
1. XHTML and CSS
XHTML (or HTML) is used for providing the markup tags, as used in any typical web site. In addition, we utilize CSS for extra styling functionality in relation to presentation and layout. XHTML is a stricter and more standardized form of HTML, which follows the rules of XML such as the requirement for well-formatted and valid against a schema or DTD.
2. Document Object Model (DOM)
The Document Object Model is a platform and language independent standard object model for representing HTML or XML.
XML is typically used as the format for transferring data between the server and the client. Using XML we can represent any applicable data object structure we might wish to represent.
in my next post i'll explain about Ajax Workflow