JSFiddle - React, Tailwind, and code Playground

by jashwant

HTML

<div id="outer">
    <div id="mydiv" data-myval="10"></div>
</div>

JavaScript

alert($('#outer').html());
var a = $('#mydiv').data('myval'); //getter
$('#mydiv').attr("data-myval","20"); //setter
alert($('#outer').html());