AJAX works in the background on web pages to update a page without having to reload it.
Ajax is a client-side script that allows content on web pages to update according to a user’s action without the page having to be refreshed.
The script communicates to and from the server or database without the need for either a postback or page refresh.
This deals with a limitation of HTTP, which requires the user to wait for a full page to load.
What is Ajax made of?