JSFiddle - React, Tailwind, and code Playground
HTML
<div id="demo" data-stuff='["some", "string", "here"]'></div>
JavaScript
var ar = $('#demo').data('stuff');
alert(ar[1]);
<div id="demo" data-stuff='["some", "string", "here"]'></div>
var ar = $('#demo').data('stuff');
alert(ar[1]);