如何在Firebase函数（类型脚本）中为从Firestore检索的数据分配Class？

Question

I'm retriving data from firestore and at the same times I'm trying to assign class to data that is recived but that does not work, what is the correct way of doing that?

async function getAcceptedShifts(monthKey: string):Promise<Shift[]> {
   return (await db.collection('companies').doc(companyIdd)
          .collection('months')
          .doc(monthKey).collection('acceptedShifts')
          .get()).docs.map(val=>{
                let s = val.data as Shift
                return s;
  })
}

and the Shift class:

class Shift{

   changeDate?: Date;
   startTime?: { year: number, month: number
            , day: number, hour: number, minute: number };
   endTime?: { year: number, month: number
          , day: number, hour: number, minute: number };
   employeeId?:string
}

Answer 1

well the correct way is:

return val.data()

-so the problem was missing paranteses! -.-