我使用了redux,但未能做到使用时刻将我的UTC日期转换为适当格式的映射。规范化减速器中的响应得到类型错误
const adsReducer = (state = initalState, action) => {
switch (action.type) {
case 'FETCH_ADS_PENDING':
return { ...state, loading: true }
case 'FETCH_ADS_FULFILLED':
return {
...state,
loading: false,
data: ((action.payload || {}).data || {}).map(o => ({...o, created_at: moment(o.created_at).format('DD-MM-YYYY')})),
}
}
}
如果我只是返回action.payload.data那么这将是很好,但我想解析日期为正确的格式,上面的代码会导致这样的
Uncaught (in promise) TypeError: ((action.payload || (intermediate value)).data || (intermediate value)).map is not a function
任何线索错误怎么了?
我使用'(action.payload || {})'和使用'&&'不一样吗?在这种情况下, –
应该是'((action.payload || {})。data || [])' –