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