From: "Simon Kröger" <SimonKroeger@...>
Date: 2006-01-31T06:27:09+09:00
Subject: Re: Loop weirdness


> 
> I did, back in the thread a little:

Sorry, missed that.

  > But don't worry about it, I am happy with the solution I've found. (That
> is, there is no longer a *problem*, although I'm always interested to
> see better/leaner/cleaner ways of doing things).

:) another try:

def categorise(items)
   items.inject([]) do |a, item|
     ary = a.assoc(item[:num]) || (a << [item[:num], []]).last
     ary.last << item[:foo]; a
   end.map{|k, v| {:num => k, :items => v}}
end

cheers

Simon