gistfile1.js

var { Store, Dispatcher } = require('./dist/emf')

var myDispatcher = new Dispatcher()

class DogStore extends Store {
  getInitialState() {
    return {
      dog: 2
    }
  }

  onAddDogAction(payload) {
    this.state.dog = 4
    this.emitChange();
  }
}

var dogStore = new DogStore(myDispatcher)
dogStore.state.dog = 7
console.log(dogStore.state.dog) // == 7 :(