JSFiddle - React, Tailwind, and code Playground

by Chakra

JavaScript

m = {};

var win2 = window.open('', '_blank');

win2.m = m;

win2.document.write('<script>document.write("typeof: " + typeof m + "<br>"); if (m instanceof Object) document.write("instanceof: true<br>"); else document.write("instanceof: false<br>");<\/script>');