Brilliantly succinct answer!

And the programming task that started this thread is a nice (though microscopic) illustration of the culture shock when our tidy, jewel-like programming models come to grips with the messy, non-systematic nature of many application domains.

Thanks for both.

-jn-

On Fri, Feb 6, 2015 at 10:59 PM, Karl Voelker <karl@karlv.net> wrote:

On Fri, Feb 6, 2015, at 01:25 AM, Roelof Wobben wrote:
> but now when I do toDigits 0 , I see [] as output where I was expected
> [0]

In our written notation, "0" is a special case: it's the only integer
written with a leading zero. So don't be too surprised if your code
requires a special case for it.

-Karl

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