Factory Example in ES6 (using Babel)

factory_test.js

class Abstr {
  constructor(f, o) {
    this.f = f;
    for (var key in o) {
      this[key] = o[key];
    }
  }
  run () {
    this.f(this);
  }
}

let AbstrFactory = (f, o) => (() => new Abstr(f, o));

let HW = AbstrFactory(() => console.log('hello world'));
let YS = AbstrFactory(() => console.log('yoloswag'));
let IntContainer = AbstrFactory(
    (self) => {
      self.val++;
      console.log(self.val);
    },
    {
      val: 0,
      shout: () => console.log('YAY!')
    }
);

let a = new HW();
let b = new YS();
let c = new IntContainer();

a.run();
b.run();
c.run();
c.run();
c.shout();
c.run();