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VBA / Excel / Access / Word » Language Basics » Function Parameter 
Default value parameters
 


Public Function Power (intNumber As Integer, Optional intPower As Variant) As Long

    If IsMissing(intPower) Then
        Power = intNumber ^ 2
    Else
        Power = intNumber ^ intPower
    End If

End Sub


Public Function Power (intNumber As Integer, Optional intPower As Integer = 2) As Long
   Power = intNumber ^ intPower
End Sub

 
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