JSFiddle - React, Tailwind, and code Playground

HTML

<div id="myvalue">5</div>
<div id="withParseInt"></div>
<div id="withoutParseInt"></div>
<div id="withoutParseIntButIncrement"></div>
<div id="withoutParseIntButMultiply"></div>

JavaScript

var value = $('#myvalue').text();
$('#withParseInt').text(parseInt(value) + 1);
$('#withoutParseInt').text(value + 1);
$('#withoutParseIntButIncrement').text(value++);
$('#withoutParseIntButMultiply').text(value * 2);