JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">

JavaScript

obj = function(){
  this.getMail = function(){
    alert("bob");
  }
  this.getMail();
}


var mail = new obj();
mail.getMail();