JSFiddle - React, Tailwind, and code Playground

by Daniel DeGroff

HTML

<div id="output"></div>

JavaScript

$("#output").html(
    "undefined : " + (undefined ? "true" : "false") + "<br>"
	+ "empty : " + ("" ? "true" : "false") + "<br>"
	+ "!!empty : " + (!!"" ? "true" : "false") + "<br>"
	+ "!!undefined : " + (!!undefined ? "true" : "false"));