In this guide, we'll take a look at how to use
   XMLHttpRequest to issue HTTP
   requests in order to exchange data between the web site and a server

The Fetch API provides an interface for fetching resources (including across the network). It will seem familiar to anyone who has used XMLHttpRequest, but the new API provides a more powerful and flexible feature set.The Fetch API provides an interface for fetching resources (including across the network). It will seem familiar to anyone who has used XMLHttpRequest, but the new API provides a more powerful and flexible feature set.

The Request() constructor creates a new
 Request object.