JSFiddle - React, Tailwind, and code Playground

HTML

<a href="http://curtistimson.co.uk" target="_blank">curtistimson.co.uk</a>

JavaScript

var MyFunction = {
       Init: function(){
          this.Config.foo = "hello world";
       },
       Config:{
          foo:null
       },
       ShowAlert:function(){
          alert(this.Config.foo);
       }
    }

MyFunction.Init();
MyFunction.Config.foo = "lorem ipsum";
MyFunction.ShowAlert();