Public Shared Function IsNull(Of T As Class) ( _
	validator As ConditionValidator(Of T), _
	conditionDescription As String _
) As ConditionValidator(Of T)

public static ConditionValidator<T> IsNull<T>(
	ConditionValidator<T> validator,
	string conditionDescription
)
where T : class

public:
generic<typename T>
where T : ref class
static ConditionValidator<T>^ IsNull(
	ConditionValidator<T>^ validator, 
	String^ conditionDescription
)

JavaScript does not support generic types or methods.