Initial redux.js file - Managing Application state without Redux

redux.js

import React from "react";

export const useGlobalState = (initialState = {}, reducer) => {
  let init;
  let appState = {};
  if (typeof initialState === "function") {
    init = initialState;
  } else {
    appState = initialState;
  }
  const [state, dispatch] = React.useReducer(
    reducer,
    appState,
    init
  );
  return {
    ...state, dispatch
  };
};