JSFiddle - React, Tailwind, and code Playground
by magcius
HTML
<div id="test"></div>
<pre id="out"></pre>
JavaScript
var $test = $("#test"), $out = $("#out");
$test.data('a-b-c', 1);
$out.append("Before remove: " + $test.data('a-b-c') + "\n");
$test.removeData('a-b-c');
$out.append("After remove: " + $test.data('a-b-c') + "\n");
$out.append(Object.keys($.cache[1]).toString());