Introduction of Ajax
Hi everyone in this blog I’m explaining about introduction
AJAX, is a web development technique for creating interactive
web applications. It is pre require for ajax that you are familir with HTML and
XML; in other words Ajax is the combination of various technologies such as a
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.
Ajax is platform-independent; in other words
AJAX is a cross-platform technology that can be used on any Operating System
implementation of other technology. It partially renders the page to the server
instead of complete page post back. We use AJAX for developing faster better
and more interactive web applications. AJAX uses a HTTP request between web
server & browser.
Using Ajax technologies we can observe in Google Maps,
Gmail, YouTube, and Facebook tabs.
AJAX is Based on
AJAX is based on internet
standards, and uses a combination of a XMLHttpRequest object to exchange data
information and CSS is used to style the data and XML is often used as the
format for transferring data.
Let us know about the basic
information each technology uses in Ajax.
1. XHTML and
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.
Object Model (DOM)
The Document Object Model is a
platform and language independent standard object model for representing HTML
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.
XMLHttpRequest is the core of the Ajax model; without it the model would not
used to exchange data asynchronously with the web server. In short,
process the response without blocking the user. Naturally, as we are using this
in my next post i'll explain about Ajax Workflow