I am accessing a document from firebase using the command FirebaseFirestore.instance.collection("Collection").doc(a).get();
Can I accesses the elements without knowing their name and only by index number?
How Acess Document Snapshot elements?
Viewed 56
1 Answers
DocumentSnapshot response = await FirebaseFirestore.instance.collection("Collection").doc(a).get();
Will return a DocumentSnapshot object.
To access this object, which is returned in the form of a Map<String, dynamic>, you need to call data() on it, i.e:
Map<String, dynamic> resultsMap = response.data();
After this, it's basic Map manipulation. If you don't know the keys of this map, you can map your map into a List, and use the indexes then.
Incase you are wondering how to turn a map to a list,
List newList = resultsMap.entries.map((e) => e.value).toList();
print(newList[0]); //should print the value of what you need.
Related