I'm trying to retrieve my documents with id but can't figure it out.
Currently I retrieve my documents like this :
const racesCollection: AngularFirestoreCollection<Races> = this.afs.collection('races');
return racesCollection.valueChanges();
我确实可以完美地获得我的文档列表,但是没有文档id.
如何 for each 文档检索它?