React/Redux:将时间戳添加到reducer返回的所有内容，以检测更新

// 定义一个reducer
const reducer = (state = {}, action) => {
  switch (action.type) {
    case 'ADD_TIMESTAMP':
      return {
        ...state,
        timestamp: Date.now() // 添加时间戳
      };
    default:
      return state;
  }
};

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

// 在组件中使用Redux store
const MyComponent = () => {
  const state = Redux.useSelector(state => state); // 获取状态
  const dispatch = Redux.useDispatch(); // 获取dispatch函数

  const handleClick = () => {
    dispatch({ type: 'ADD_TIMESTAMP' }); // 触发添加时间戳的动作
  };

  return (
    <div>
      <p>当前状态：{JSON.stringify(state)}</p>
      <button onClick={handleClick}>添加时间戳</button>
    </div>
  );
};