From: "Kevin Börgens" <kevin@...>
Date: 2004-11-10T01:38:33+09:00
Subject: Re: Iterating trough hash

Hi!
> #!/usr/bin/env ruby
> 
> h = {"john" => 41, "mary" => 31, "fred" => 10}
> h.each_key do |person1|
> h.each_key do |person2|
> puts "#{person1} shakes hands with #{person2}.  " +
> "Together they are #{h[person1] + h[person2]} years old."
> end
> end
No, this programm would iterate like this
john john
john mary
john fred
mary john
mary mary
mary fred
fred john
fred mary
fred fred

> I'm not very clear on what you were aiming for with the if statement,
> but if you tell me, I can probably add that back a little slimmer too.
Therefore I used the example with shaking hands. You don't shake hands with
yourself and it doesn't matter who is person1 or person2

TIA,
 Kevin