Here is a basic example of Preloading the content on the webpages.
<head>
<meta charset="utf-8">
<title>JS and CSS preload example</title>
<link rel="preload" href="style.css" as="style"/>
<link rel="preload" href="main.js" as="script"/>
<link rel="stylesheet" href="style.css"/>
</head>
<body>
<h1>Preloading Example</h1>
<canvas></canvas>
<script src="main.js" defer></script>
</body>
Here we preload our CSS and JavaScript files so they will be available as soon as they are required for the rendering of the page later on.
