如何向reducer中的嵌套对象添加新对象？

import { combineReducers } from 'redux';

// 初始状态
const initialState = {
  users: {
    data: [],
  },
};

// 处理添加用户的reducer
const usersReducer = (state = initialState.users, action) => {
  switch (action.type) {
    case 'ADD_USER':
      // 深拷贝原始状态
      const newState = JSON.parse(JSON.stringify(state));
      // 向嵌套对象中添加新对象
      newState.data.push(action.payload);
      return newState;
    default:
      return state;
  }
};

// 根据需要，可以再添加其他的reducers

// 组合reducers
const rootReducer = combineReducers({
  users: usersReducer,
  // 添加其他的reducers
});

export default rootReducer;