JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://amatiasq.com/fiddle-console.js"></script>

JavaScript

var a =  { };
a.prototype = {
    name: "Alice",
    lastname: "Smith",
    fullname: function() { 
        return this.name + ' ' + this.lastname;
    }
};



console.log(a.fullname());
console.log(a.name);