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IsValidUsSSN – Validating a US Social Security Number (SSN)

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' Validate a US Social Security Number' Example:'   MessageBox.Show(IsValidUsSSN("123-12-1234"))  ' True'   MessageBox.Show(IsValidUsSSN("123-123-1234")) ' FalseFunction IsValidUsSSN(ByVal ssn As String) As Boolean    Return System.Text.RegularExpressions.Regex.IsMatch(ssn, _        "^d{3}-d{2}-d{4}$")End Function

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