> Bulat Ziganshin <bulatz / integ.ru> wrote:
> > Array#uniqc - gets sorted array of items and returns array of pairs
> [item, count]
> >
> > and these two methods must be included in Ruby itself, because they support
> > very widespread programming idioms
>
> Requiring a sorted array seems jarring for a ruby Array# builtin - very
> few standard class methods have preconditions.

That may be, but "uniq" is a well known idiom (at least in the unix world), and
it does indeed require a sorted input.