This is the second tutorial in a series explaining how to implement Ajax “from the ground up”, so if you haven’t yet checked out the first tutorial, then please do so now, as this one will be building on code from part one.
In the first part, we learned how to create an instance of the
XMLHttpRequest object in a cross-browser fashion. In part 2, we’ll discuss the code needed to start communicating with the server. The result of this tutorial will help us send data to the server.