Is Operator

Syntax
expr Is expr
-or-
expr IsNot expr
Group
Operator
Description
Return the True if both exprs refer to the same object.

The IsNot operator inverts the result.
See Also
Objects

Sub Main
    Dim X As Object
    Dim Y As Object
    Debug.Print X Is Y ' True
    Debug.Print X IsNot Y ' False
End Sub