JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#">testing</a>
<a href="#">testing</a>
<a href="#">testing</a>
<a href="#">testing</a>
<a href="#">testing</a>
<a href="#">testing</a>

JavaScript

$('a').data('one', 1);
alert('$.expando = ' + $.expando + 
      "\n$('a')[4][$.expando] = " + $('a')[4][$.expando] + 
      "\n$.cache[$('a')[4][$.expando]].one = " + $.cache[$('a')[4][$.expando]].one);