An example of a local storage hook

useLocal.js

import { useEffect } from "react";
import { useAppReducer } from "../AppContext";

export default function useLocal() {
  const dispatch = useAppReducer();

  useEffect(() => {
    dispatch({
      type: "GET_FROM_LOCAL_STATE",
      somePieceOfState: localStorage.getItem("some_state") || "defaultvalue",
    });
  }, [dispatch]);
}