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What are the benefits of AJAX?
In traditional Web development, when a page from your application is displayed and you want to modify a single element (a price, a list of vehicles, and so on), the server needs to resend the entire page to the user’s browser.
This has several down sides:
- it overloads the server since it has to resend the entire page;
- it slows down the server since it has to rebuild the page;
- it eats up some bandwidth (the entire page’s contents need to be sent, which usually amounts to several dozens KB or hundreds of KB);
- it usually creates a “redraw” effect on the user’s browser;
- the display on the user’s machine may be slow since the browser has to reinterpret and redisplay the entire page.
With the AJAX technology – key concept in WEB 2.0 – you can now send only the modified data to the user’s machine, without refreshing the entire page. There are many benefits:
- the server is less taxed, which allows for a larger number of connections to a physical server;
- the amount of information exchanged is reduced;
- the transmission time is shorter;
- the display is instantaneous without any visual impact for the Web user.
How to implement AJAX using WEBDEV?
You don’t need to code anything.
You automatically benefit from AJAX.
You keep programming in a 5GL (WLanguage). WEBDEV takes care of everything.
A new “AJAX” choice appears in the code editor’s title bar. By default, the word “AJAX” is crossed out, which means that the operations will be performed using traditional WEB programming.
Where does the name AJAX come from?
AJAX is an acronym that means Asynchronous JavaScript And XML. |
