useReducer with maps

useReducerMap.ts

import { useReducer } from 'react';

type Reducer<S = any> = (state: S, action: any) => S;
type Map = Record<string, Reducer>

export default function useReducerMap(map: Map, initialState: unknown) {
  return useReducer((state, action) => {
    const reducer = map[action.type];
    return reducer(state, action);
  }, initialState)
}

Need to tighten the types