JSFiddle - React, Tailwind, and code Playground

HTML

<!--
 For answering http://stackoverflow.com/questions/6041593/javascript-adding-click-event-via-addeventlistener-to-confirm-navigation-from-a-h
-->
<ul>
    <li><a href="http://www.bbc.co.uk">www.bbc.co.uk</a></li>
    <li><a href="http://www.google.co.uk">www.google.co.uk</a></li>
</ul>

JavaScript

var Anchors = document.getElementsByTagName("a");

for (var i = 0; i < Anchors.length ; i++) {
    Anchors[i].addEventListener("click", 
        function (event) {
            //event.preventDefault();
            //if (confirm('Are you sure?')) {
                window.location = this.href;
            //}
        }, 
        false);
}