Using thunk with React hooks

useThunk.js

const useThunk = (reducer, initState) => {
  const [state, dispatch] = useReducer(reducer, initState);
  const thunkDispatch = action => {
    if (typeof action === "function") {
      action(dispatch, () => state);
    } else {
      dispatch(action);
    }
  };
  return [state, thunkDispatch];
};