JSFiddle - React, Tailwind, and code Playground
HTML
<link rel="stylesheet" href="///ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/themes/base/jquery-ui.css">
<div id="myElement" data-defaultValue="">I am a div</div>
JavaScript
$("#myElement").data('defaultValue', function() {
return $(this).html();
});