Redux sample implementation

redux.js

const statusMessagesReducer = (state = [], action) => {
  if (action.type === "ADD_STATUS") {
    return state.concat(action.statusMessage);
  }
  return state;
};

const notificationsReducer = (state = [], action) => {
  if (action.type === "ADD_NOTIFICATION") {
    return state.concat(action.notification);
  }
  return state;
};


const store = Redux.createStore(Redux.combineReducers({
  statusMessages: statusMessagesReducer,
  notifications: notificationsReducer,
 }));

let addStatusMessage = (statusMessage) => {
  return {
    type : "ADD_STATUS",
    statusMessage : statusMessage
  };
};

let addNotification = (notification) => {
  return {
    type : "ADD_NOTIFICATION",
    notification : notification
  };
};

let unsubscribe = store.subscribe(() =>
  console.log(store.getState())
)

store.dispatch(addStatusMessage({
  message : "Redux looks cool",
  likesCount: 23,
  postedAt: "12/12/2015"
}));

store.dispatch(addNotification({
  message : "Some liked your status"
}));

unsubscribe();