What is AJAX?

AJAX, Asynchronous Javascript And XML is not a new technology, but it is an important improvement over existing client side technologies.

With the help of AJAX we can develop more interactive web pages.

The best example of AJAX is the Suggestions Of the Google which appear dynamically as we type in the search box.

Also many webpages while on the registration they will check the availability of the username automatically, through AJAX.

From these examples, I hope you got something about AJAX.

It can connect to the server(or database) and retrieves information without the page reload.

That means When we want a part of a web page to be updated automatically we can use AJAX, instead of reloading the entire web page.

The name itself says that Javascript+XML =AJAX.

Don’t Fear, you may continue learn this even though you don’t know anything about Javascript & XML. (Very little bit of JavaScript appreciated).

Nowadays almost every website is using AJAX, to develop interactive websites, so that they can give fast accessing to the users and less burden on the server.

If you have more time and want to learn more about what is AJAX, click here

Otherwise move to Lesson2