React/Redux hooks Vs equivalent implementation in React class feature

I am writing this article as an attempt to challenge myself to do a deep dive comparison between react/redux hooks used in functional component vs the equivalent implementation in react class component.

Note: I could not find equivalent class feature implementation for all the hooks. But I tried to the maximum which I can.

In this article, we will discuss the below list of mapping b/w react & redux hooks and it is equivalent implementation in class components. 

                                        React and Redux hooks Vs class feature mappings

useState hook Vs equivalent implementation in class Component

useEffect hook Vs equivalent implementation in class component

useRef hook Vs equivalent implementation in class Component

useMemo hook Vs equivalent implementation in class component

useSelector redux hook Vs redux Connect (mapStateToProps)

useDispatch redux hook Vs redux Connect(mapDispatchToProps)