Now that we have an active JSON data feed, it is about time to make our first AJAX call. We will look at different approaches to making an AJAX call; this technology and the way it is used have evolved over a period of time with the aim of improving performance. The first approach will use basic JavaScript so that we understand what happens behind the scenes when an AJAX call is made. Once we understand the concept of AJAX, we will use some popular libraries to make the same AJAX call but with some variations. Let's take a look at our first approach, using basic JavaScript by creating a basic.html file with the following template:
<!DOCTYPE html>
<html>
<head>
<title>First AJAX script</title>
<script type="text/javascript" src="basic.js"></script>
</head>
<body>
<h2...
