JSFiddle - React, Tailwind, and code Playground

HTML

<div>DIV</div>

JavaScript

var ex = jQuery.expando,
    cache = jQuery.cache,
    div = jQuery('div').data('test', 'ing')[0];

log(ex);
log(cache);

log( div[ex] );
log( cache[div[ex]] )

function log(a) { if (console && console.log) console.log(a); else alert(a); }