tryRemoveKey
tryRemoveKey(keys: KeyType): MemberType abstract, lockReceiver, updating;
The tryRemoveKey method of the Dictionary class attempts to remove a single (key, value) pair specified in the keys parameter from the dictionary if it is present. This method returns the MemberType value if a single (key, value) pair was successfully removed; otherwise it returns null.
No subclass of the RootSchema Dictionary class allows the insertion of a null object reference.
2020.0.01 and higher
