如何在Redux中更改对象数组内的值

// 定义action类型
const UPDATE_ITEM = 'UPDATE_ITEM';

// 定义action创建函数
const updateItem = (index, newValue) => ({
  type: UPDATE_ITEM,
  payload: { index, newValue },
});

// 定义初始状态
const initialState = {
  items: [
    { id: 1, value: 'item 1' },
    { id: 2, value: 'item 2' },
    { id: 3, value: 'item 3' },
  ],
};

// 定义reducer函数
const reducer = (state = initialState, action) => {
  switch (action.type) {
    case UPDATE_ITEM:
      return {
        ...state,
        items: state.items.map((item, index) => {
          if (index === action.payload.index) {
            return {
              ...item,
              value: action.payload.newValue,
            };
          }
          return item;
        }),
      };
    default:
      return state;
  }
};

// 创建Redux store
const store = Redux.createStore(reducer);

// dispatch action来更新状态
store.dispatch(updateItem(1, 'updated item 2'));

// 获取更新后的状态
const updatedState = store.getState();
console.log(updatedState.items);