JSFiddle - React, Tailwind, and code Playground

HTML

<LINK rel="Index" href="index.html">
<LINK rel="Next"  href="Chapter3.html">
<LINK rel="Prev"  href="Chapter1.html">

JavaScript

var links = document.getElementsByTagName("link");

for ( var i = 0; i < links.length; i++ ) {
    alert( links[i].getAttribute("rel") + ' : ' + links[i].getAttribute("href") );        
}