If you don't have either one, you have an error and bail out immediately.For seven-digit phone numbers, we prepend the default area code, and then build the final number with a little bit of string manipulation.
PROMIS is a prospective validating paired-cohort study that meets criteria for level 1 evidence in diagnostic test evaluation.
Here’s a fairly common code sample from Rails Applications with some sort of authentication system: If you’re experienced at Regex, this seems simple. Sections 3.2.4 and 3.4.1 of the RFC go into the requirements on how an email address needs to be formatted and, well, there’s not much you can’t do in your email address when quotes or backslashes are involved.
If (like me when I first saw this) you AREN’T experienced at Regex, it takes a while to parse. The local string (the part of the email address that comes before the @) can contain any of these characters: is a valid email address. For this reason, for a time I began running any email address against the following regular expression instead: Simple, right? This is often the most I do and, when paired with a confirmation field for the email address on your registration form, can alleviate most problems with user error.
But what if I told you there were a way to determine whether or not an email is valid without resorting to regular expressions at all? The activation email is a practice that’s been in use for years, but it’s often paired with complex validations that the email is formatted correctly.
It’s surprisingly easy, and you’re probably already doing it anyway. If you’re going to send an activation email to users, why bother using a gigantic regular expression?
Numbers entered without area codes will have a default area code prepended to them. Any extensions will be listed as xnnnnn following the phone number. If an initial 1 is added to the number, it will be removed, since users already know to dial a one before making a long distance call.
With these rules in mind, let's create the validation code for a text box named txt Phone: Private Sub txt Phone_Validate(Cancel As Boolean) Dim str Temp As String Dim str Phone As String Dim str Extension As String Dim int Result As Integer Const Default Area Code = "703" ' ' Remove all the grouping characters for ' now. ' str Temp = Replace(txt Phone, "(", "") str Temp = Replace(str Temp, ")", "") str Temp = Replace(str Temp, "-", "") str Temp = Replace(str Temp, " ", "") str Temp = Replace(str Temp, "X", "x") ' ' Break up the digits into the number and ' the extension, if any.
The conduct and reporting of each test will be blinded to the others.
PROMIS will measure and compare sensitivity, specificity, and positive and negative predictive values of both MP-MRI and TRUS-biopsy against TPM biopsies.
The extension found, if any, is added back to the number.
To try this code out, you can use any of these test cases to see the validation in action: The end result is that it makes data entry easier for the user.
The computer is now smart enough to automatically translate data into the format that has been pre-selected for use in that system, saving timeand no doubtmoney.