export const SomeItem = () => {
  const dispatch = useDispatch()
  const someSelector = useSelector(getItemsSelector)

  // create component state props (just example)
  const [isLoadind, setLoading] = useState(false)

  useEffect(() => {
    // componentDidMount
    dispatch(someAction)
    return function() {
      // componentWillUnmount
      dispatch(resetSomeAction)
    }
  }, [dispatch])

  render() => <div/>
}