| AJAX is not a new
language, but just a new way to use
existing standards.
With AJAX you can create better, faster,
and more user friendly web applications.
AJAX is based on JavaScript and HTTP
requests.
AJAX = Asynchronous JavaScript And
XML
AJAX is an acronym for Asynchronous
JavaScript And XML.>
AJAX is not a new programming language,
but simply a new technique for creating
better, faster, and more interactive
web applications.
AJAX uses JavaScript to send and
receive data between a web browser
and a web server.
The AJAX technique makes web pages
more responsive by exchanging data
with the web server behind the scenes,
instead of reloading an entire web
page each time a user makes a change.
AJAX Is A Browser Technology
AJAX is a technology that runs in
your browser. It uses asynchronous
data transfer (HTTP requests) between
the browser and the web server, allowing
web pages to request small bits of
information from the server instead
of whole pages.
The technology makes Internet applications
smaller, faster and more user friendly.
AJAX is a web browser technology
independent of web server software.
AJAX Is Based On Open Standards
AJAX is based on the following open
standards:
The open standards used in AJAX are
well defined, and supported by all
major browsers. AJAX applications
are browser and platform independent.
(Cross-Platform, Cross-Browser technology)
AJAX Is About Better Internet Applications
Web applications have many benefits
over desktop applications, they can
reach a larger audience, they are
easier to install and support, and
easier to develop.
However, Internet applications are
not always as "rich" and user-friendly
as traditional desktop applications.
With AJAX, Internet applications
can be made richer (smaller, faster,
and easier to use).
You Can Start Using AJAX Today
There is nothing new to learn.
AJAX is based on open standards.
These standards have been used by
most developers for several years.
Most existing web applications can
be rewritten to use AJAX technology
instead of traditional HTML forms.
AJAX Uses XML And HTTP Requests
A traditional web application will
submit input (using an HTML form)
to a web server. After the web server
has processed the data, it will return
a completely new web page to the user.
Because the server returns a new
web page each time the user submits
input, traditional web applications
often run slowly and tend to be less
user friendly.
With AJAX, web applications can send
and retrieve data without reloading
the whole web page. This is done by
sending HTTP requests to the server
(behind the scenes), and by modifying
only parts of the web page using JavaScript
when the server returns data.
XML is commonly used as the format
for receiving server data, although
any format, including plain text,
can be used.
You will learn more about how this
is done in the next chapters of this
tutorial.
AJAX Tutorial
[AJAX
Tutorial] [AJAX
Example] [AJAX
Browsers] [AJAX
Source] [AJAX
Server] [AJAX
Database] [AJAX
XML File] [AJAX
XMLHttpRequest]
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