如何在redux reducer中添加对象的嵌套数组中的项

// 假设原始state的结构如下：
const initialState = {
  data: {
    nestedArray: []
  }
};

// 定义一个Redux reducer
const reducer = (state = initialState, action) => {
  switch(action.type) {
    case 'ADD_ITEM':
      // 复制state的对象和嵌套数组
      const newData = Object.assign({}, state.data);
      const nestedArrayCopy = state.data.nestedArray.slice();

      // 向嵌套数组中添加新的项
      nestedArrayCopy.push(action.payload);

      // 将修改后的嵌套数组赋值给新的对象
      newData.nestedArray = nestedArrayCopy;

      return {
        ...state,
        data: newData
      };
    default:
      return state;
  }
};

// 使用Redux的store和reducer
import { createStore } from 'redux';

const store = createStore(reducer);

// dispatch一个action来添加新的项到嵌套数组中
store.dispatch({
  type: 'ADD_ITEM',
  payload: { name: 'item1', value: 10 }
});