Objects as curried functions

foo.js

class Foo {
  constructor(bar) { this.bar = bar }
  
  getBar() { return this.bar }
  setBar(newBar) { this.bar = newBar }
}

function FuncFoo(bar) {
  function getBar() { return bar }
  function setBar(newBar) { bar = newBar }
  
  // This is our only public API
  return { getBar, setBar }
}

const objFoo = new Foo("object")
const funcFoo = FuncFoo("function")

console.log(objFoo.getBar())
console.log(funcFoo.getBar())