Base Flux Store class in ES6 ( See http://cl.ly/0J3j3D1k0742 )

sbf_Store.js

import EventEmitter from 'events';

class Store extends EventEmitter {
  
  static CHANGE_EVENT = 'change';

  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;