How ajax works?

Ajax refers to asynchronous java script and xml. It is not a not a programming language. Ajax is of Asynchronous type. It normally uses XML, plain text or JSON to communicate with server i.e. for data transfer.

Note: Ajax is technology independent.

How ajax works?

1. An event occurs in a web page like click a button.
2. JavaScript creates an XMLHttpRequest object.
3. The XMLHttpRequest object sends a request to a web server.
4. The server processes the request.
5. The server sends a response back to the web page.
6. JavaScript reads the response.
7. JavaScript updates the page content.