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comp.lang.ruby

Re: An idiomatic way to traverse all pairs in an enumerable?

Trans

12/16/2007 2:21:00 PM



On Dec 15, 6:03 pm, "Shot (Piotr Szotkowski)" <s...@hot.pl> wrote:
> I seem to end up doing the following quite a lot:
>
> enum.each do |a|
> enum.each do |b|
> next if a >= b
> # do_something with a and b
> end
> end
>
> In general, I'm looking for an idiomatic way of traversing each
> possible pair of a given enum's contents (once). Is there a more
> compact construct?

Facets exits for you.

http://facets.rub.../rdoc/core/classes/Enumerable.ht...

T.

http://facets.rub...