JSFiddle - React, Tailwind, and code Playground

HTML

<body onload="registerHandlers()">
    In my life, I used the following web search engines:<br/>
    <a href="//www.yahoo.com">Yahoo!</a><br/>
    <a href="//www.altavista.com">AltaVista</a><br/>
    <a href="//www.google.com">Google</a><br/>
  </body>

JavaScript

function registerHandlers() {
  var as = document.getElementsByTagName('a');
  for (var i = 0; i < as.length; i++) {
    as[i].onclick = function() {
      alert(i);
      return false;
    }
  }
}