Delete index at array in Firestore

Question

I got this data in my document:

I want to delete index 0. How do I do this? This should do the trick I thought:

    db.collection("data").document("free").updateData(["deleteme.deletemee.0" : FieldValue.delete()]) { (errr) in
        print(errr)
    }

But the errr prints nil, and nothing is removed. When getting the document I noticed something strange about the data when using this code:

    db.collection("data").document("free").getDocument { (doc, err) in
        guard let _doc = doc,
            doc?.exists ?? false else{ return }
        print(_doc.data())
    }

This prints out:

["deleteme": {
    deletemee =     (
        1 //this is the value for the key, but where is my key?! :(
    );
}]

I cannot see the key, where is it? How to delete something at an index in Firestore? Thanks.

Answer 1

Array operations have finally been supported. Deletion, addition, etc. are supported via the value (not the index) now:

At the moment, there are a few bugs at the moment though as this one I encountered.

The dev blog here: