regex of a 9-10 digits number code example
Example: regex numeric digits
' Needs reference "Microsoft VBScript Regular Expressions 5.5"
Dim rRegex As Object
Set rRegex = CreateObject("VBScript.RegExp")
rRegex.Pattern = "[0-9]{8,9}" ' 8 or 9 numbers
MsgBox rRegex.test("12345678") ' True
rRegex.Pattern = "[0-9]+" ' Numeric of any size
MsgBox rRegex.test("12345") ' True