All modern browsers have a built-in XMLHttpRequest object to request data from a server.
The XMLHttpRequest Object
The XMLHttpRequest object can be used to request data from a web server.
The XMLHttpRequest object is a developers dream, because you can:
- Update a web page without reloading the page
- Request data from a server – after the page has loaded
- Receive data from a server – after the page has loaded
- Send data to a server – in the background