react-use-local-storage.jsx

function useLocalStorage() {
  const get = key => localStorage.getItem(key);
  const set = (key, value) = localStorage.setItem(key, value);
  
  return [get, set];
}

const Example = () => {
  const [getLocalStorage, setLocalStorage] = useLocalStorage();

  const savedItem = getLocalStorage('some_key');

  return <div>{savedItem}</div>
}