JSFiddle - React, Tailwind, and code Playground

JavaScript

var d = new Date();
d.setFullYear(2012,2,8);
document.write(d);
document.write("<br />");
d.setFullYear(parseInt("2012"), parseInt("02"), parseInt("08"));
document.write(d);
document.write("<br />");
document.write(parseInt("2"));
document.write("<br />");
document.write(parseInt("8"));