Programming Reference Manual
 
Syntax
 
IsEmpty(variantvar)
 
Description
Return the True if variantvar is Empty.
 
Parameter
Description
variantvar 
A variant var is Empty if it has never been assigned a value
See Also
Example
 
Sub Main
    Dim X As Variant
    Debug.Print IsEmpty(X) 'True
    X = 0
    Debug.Print IsEmpty(X) 'False
    X = Empty
    Debug.Print IsEmpty(X) 'True
End Sub