tryPutAtKeyDeferred

tryPutAtKeyDeferred(keys: KeyType; value: MemberType): Boolean 
                                      receiverByReference, updating;

The tryPutAtKeyDeferred method of the Dictionary class attempts to add the (key, value) pair specified in the keys and value parameters to the dictionary if it is not already present.

For persistent dictionaries, the attempt is queued and executed when the database transaction commits. For transient dictionaries, the attempt is executed immediately.

2020.0.01 and higher