JSFiddle - React, Tailwind, and code Playground
by Rod goooo
JavaScript
$(document).ready(function() {
var Person = function(firstName){
if(!firstName) this.firstName = "Fulano";
else this.firstName = firstName;
this.dizerOla = function(){ alert( "\t" + this.firstName + " diz: \"olá\"."); }
};
var a = new Person("Alberto");
a
});