前端项目实战贰拾叁-​react-admin+material ui数据处理usememo处理数据并返回

   const items = useMemo(() => {
 
        var MainLevel = MainData.reduce((resData: any, item: any) => {
            resData = {
                ...resData,
                [item]: []
            }
           
            return resData
        }, {})
        return Object.entries(DetailData.reduce((resData1: any, item1: any) => {
            resData1[item1.MainData] = [...resData1[item1.MainData], item1]
            console.log(resData1,"resData11")
            return resData1
        }, MainLevel))
 
    }, [])