I'm using ES6 with the Webpack es6-transpiler per my article here: http://www.railsonmaui.com/blog/2014/10/02/integrating-webpack-and-the-es6-transpiler-into-an-existing-rails-project/

Does it make any sense to convert two Singleton objects to use ES6 Classes?

import { CHANGE_EVENT } from ../constants/Constants;



var EventEmitter = require('events').EventEmitter;

var merge = require('react/lib/merge');



var _flash = null;



var BaseStore = merge(EventEmitter.prototype, {



  emitChange: function() {

    this.emit(CHANGE_EVENT);

  },



  /**

   * @param {function} callback

   */

  addChangeListener: function(callback) {

    this.on(CHANGE_EVENT, callback);

  },



  /**

   * @param {function} callback

   */

  removeChangeListener: function(callback) {

    this.removeListener(CHANGE_EVENT, callback);

  },



  getFlash: function() {

    return _flash;

  },



  setFlash: function(flash) {

    _flash = flash;

  }

});



export { BaseStore };

This is file ManagerProducts.jsx that has a singleton that should extend from BaseStore.

/**

 * Client side store of the manager_product resource

 */

import { BaseStore } from ./BaseStore;

import { AppDispatcher } from '../dispatcher/AppDispatcher';

import { ActionTypes } from '../constants/Constants';

import { WebAPIUtils } from '../utils/WebAPIUtils';

import { Util } from ../utils/Util;

var merge = require('react/lib/merge');



var _managerProducts = [];



var receiveAllDataError = function(action) {

  console.log(receiveAllDataError %j, action);

  WebAPIUtils.logAjaxError(action.xhr, action.status, action.err);

};



var ManagerProductStore = merge(BaseStore, {

  getAll: function() {

    return _managerProducts;

  }

});



var receiveAllDataSuccess = function(action) {

  _managerProducts = action.data.managerProducts;

  //ManagerProductStore.setFlash({ message: Manager Product data loaded});

};





ManagerProductStore.dispatchToken = AppDispatcher.register(function(payload) {

  var action = payload.action;

  if (Util.blank(action.type)) { throw `Invalid action, payload ${JSON.stringify(payload)}`; }



  switch(action.type) {

    case ActionTypes.RECEIVE_ALL_DATA_SUCCESS:

      receiveAllDataSuccess(action);

      break;

    case ActionTypes.RECEIVE_ALL_DATA_ERROR:

      receiveAllDataError(action);

      break;

    default:

      return true;

  }

  ManagerProductStore.emitChange();

  return true;

});



export { ManagerProductStore };