Question

Given the following statements in VBA:
Assume that val = 4 and Option Base 0

Dim dataStr() As String
ReDim dataStr(val) 

Will the ReDim statement initialise the String array dataStr to 5 empty string elements(0 to 4).
What exactly will be the contents of the Array after the execution of the ReDim statement.

Answer 1

Sub RedimStringArray()

Dim Val As Integer
Dim dataStr() As String
Dim idx As Long

    Val = 4

    ReDim dataStr(Val)

    For idx = LBound(dataStr) To UBound(dataStr)
        Debug.Print idx, """" & dataStr(idx); """", TypeName(dataStr(idx)), Len(dataStr(idx))
    Next

End Sub

gives me this:

 0            ""            String         0 
 1            ""            String         0 
 2            ""            String         0 
 3            ""            String         0 
 4            ""            String         0 

So I’d say that yes, ReDim re-initializes the array with empty strings.