JSFiddle - React, Tailwind, and code Playground

HTML

<a href="http://www.microsoft.com" class="menuItem">Microsoft Home Page</a> | <a href="http://www.msdn.com" class="menuItem">MSDN</a>
<br/>
<iframe id="iframe" src="http://www.google.com" />

JavaScript

$(function() {
   $('.menuItem').click(function(e) { 
      e.preventDefault();
      $('#iframe').attr("src", $(this).attr("href"));
   });
});