How AJAX Works ? | In Hindi

AJAX Working Model
Read data from a web server - after the page has loaded
Update a web page without reloading the page
Send data to a web server - in the background
1. An event occurs in a web page (the page is loaded, a button is clicked)
2. An XMLHttpRequest object is created by JavaScript
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. The response is read by JavaScript
7. Proper action (like page update) is performed by JavaScript