The ``++... IsNot ...++`` syntax is more compact and more readable than the ``++Not ... Is ...++`` syntax.


== Noncompliant Code Example

[source,vbnet]
----
Module Module1
    Sub Main()
        Dim a = Not "a" Is Nothing ' Noncompliant
    End Sub
End Module
----


== Compliant Solution

[source,vbnet]
----
Module Module1
    Sub Main()
        Dim a = "a" IsNot Nothing  ' Compliant
    End Sub
End Module
----

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::message.adoc[]

endif::env-github,rspecator-view[]