如何从localStorage读取DraftJS状态？

// 保存状态到localStorage
const saveStateToLocalStorage = (key, state) => {
  const serializedState = JSON.stringify(state.toJSON());
  localStorage.setItem(key, serializedState);
};

// 从localStorage读取状态
const loadStateFromLocalStorage = (key) => {
  const serializedState = localStorage.getItem(key);
  if (serializedState === null) {
    return undefined;
  }
  const state = JSON.parse(serializedState);
  return EditorState.createWithContent(convertFromRaw(state));
};

// 使用示例
const key = 'draftjsState';
const editorState = loadStateFromLocalStorage(key);
if (editorState) {
  // 从localStorage成功读取到状态
  // 将editorState传递给DraftJS的Editor组件
} else {
  // 从localStorage读取状态失败或者没有保存过状态
  // 创建一个新的EditorState对象
}