8.3.9 VarIsNullReference
VarIsNullReference returns a Boolean True if the Subject variant contains a component reference and the reference is the special *NULL component reference, otherwise it returns a Boolean False.
VarIsNullReference( Subject )
VarIsNullReference returns a Boolean True if the Subject variant contains a component reference and the reference is the special *NULL component reference, otherwise it returns a Boolean False.
VarIsNullReference( Subject )