JSFiddle - React, Tailwind, and code Playground

by MegaScience

JavaScript

document.write(typeof exValDef + "<br>");
var exValDef = "";
document.write(typeof exValDef + "<br>");
var exValUndef;
document.write(typeof exValDef + "<br>");
var exValUndef2;
document.write(typeof exValDef2 + "<br>");
exValUndef2 = null;
document.write(typeof exValDef2);