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visits member for 2 years, 3 months
seen Apr 17 at 3:05

Feb
7
comment Why do credit card forms ask for Visa, MasterCard, etc.?
@CodeMaverick and I'm guessing that if they need more numbers for cards, that that is what they'll do - add numbers to the end and make sure the new card numbers pass the old tests. If they tried changing the way the numbers start, I think all the sysadmins would stop them!
Feb
5
comment Why do credit card forms ask for Visa, MasterCard, etc.?
@J.R. lol, "maintenance nightmare"? If Mastercard added an alternative starting sequence to their card numbers, I'm sure it would not clash with other card issuers' numbers. 5 minutes of coding to handle the additional pattern. That... and they'll never run out of numbers anyway.
Sep
7
awarded  Supporter
May
8
comment Preventing a user from pasting from the clipboard into a mandatory form field
@poke and therefore, when you enter your credit card number you are likely to enter it correctly. Plus the checksum will make it almost impossible to enter it incorrectly and pass. You're more likely to make a typo in what you know by heart and are typing quickly than in what you are carefully entering digit by digit.
May
8
comment Preventing a user from pasting from the clipboard into a mandatory form field
I don't think this is a good idea. I think requiring the user to type the address twice in the form is a better idea. Why? If your email address is "billthe_best4932@yahoo.co.uk" I think you are less likely to type it twice the same incorrect way than you are to glance at the confirmation and not notice an error. I.e. if you typed "billhe_best4932@yahoo.co" will you notice the error and fix it? If so, you are likely to add ".uk" to the end and click submit, not noticing the missing "t" in "billhe".