Here's a fun fact (which actually will be accompanied with a source) about node.js. When you import or require a module it will be imported as a singleton. Or put another way, ```export const Foo = { };``` is one of the simplest* and most readable singletons you can have in that runtime. And of course here's the thing you always should be asking for when people make a claim like this https://nodejs.org/api/...

So why write this? Well some of you might feel inclined to write a medium (or other) post about "design patterns in Javascript" where you basically just translate the GOF book from Java to Javascript and now you have something that isn't just awkwardly translated Java code!