text: // actions
  const SET_TIME_FILTER = 'SET_TIME_FILTER'
  
  // initialState
  const initialState = "week"
  
  // action creators
  export const setTimeFilter = timeFilter => ({type: SET_TIME_FILTER, timeFilter})
  
  // reducer
  export default function(state = initialState, action) {
    switch (action.type) {
      case SET_TIME_FILTER:
        return action.timeFilter
      default:
        return state
    }
  }
  