Base Flux Store class in ES6 ( See http://bit.ly/29RY6gq )

sbf_Store.js

import EventEmitter from 'events';

var CHANGE_EVENT = 'change';

class Store extends EventEmitter {

  constructor() {
    super();
  }

  emitChange() {
    this.emit(CHANGE_EVENT);
  }

  addChangeListener(callback) {
    this.on(CHANGE_EVENT, callback);
  }

  removeChangeListener(callback) {
    this.removeListener(CHANGE_EVENT, callback);
  }
}

Store.dispatchToken = null;

export default Store;

what about this? see any problems?

https://gist.github.com/andrewmclagan/33f3491758e24a30f911