Yes Javascript. In our instance PIN must be at least 9 digits long and
numeric. There is no maximum length and we want to encourage longer PIN's.
Thanks for the help!
On Mon, Feb 24, 2014 at 7:34 AM, David Landry <dlan...@byu.net> wrote:
> On Mon, Feb 24, 2014 at 9:33 AM, David Landry <dlan...@byu.net> wrote:
>
> > There's a little bit of redundancy in there. Also, there's no length
> > requirement (e.g. isPIN('') also returns true).
> >
> > Without adding length requirements, I'd do it like this:
> >
> > function isPIN(str) {
> > return /^\+?(\d*)$/.test(str);
> > }
> >
> > With a length requirement, it might look like this (if PINs must be 4
> > numbers long, {a,b} for a range from a to b length):
> >
> > function isPIN(str) {
> > return /^\+?(\d{4})$/.test(str);
> > }
> >
>
> Ooops, missed this cruft, the \+? is redundant too. So,
>
> function isPIN(str) {
> return /^(\d{4})$/.test(str);
> }
>
>
> ---
> David Landry
>
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