From: "Simon Kröger" <SimonKroeger@...>
Date: 2006-01-30T05:33:59+09:00
Subject: Re: Loop weirdness

Jonathan Leighton wrote:

> Hi,
> 
> I'm going ever so slightly crazy over some looping behaviour. Here's a
> simplified test case I made:

Is this what you are trying to do?

def categorise(items)
   items.inject(Hash.new([])) do |h, item|
     h[item[:num]] += [item[:foo]]; h
   end.map{|k, v| {:num => k, :items => v}}
end

(sorry, i know this wasn't your question - i love refactoring and
hope there is a trick or two in it you didn't came across yet)

cheers

Simon