From: Randy Kramer <rhkramer@...>
Date: 2007-10-27T20:35:41+09:00
Subject: Re: .each do |foo, bar|     what does bar do?

On Saturday 27 October 2007 06:57 am, Thufir wrote:
> I just can't wrap my mind around *what's* being iterated through.  I 
> guess it's the way that, as you put it, the "yield(current_hash_key, 
> current_hash_value)" is happening behind the scenes.

Well, let's look at an example hash:

{ "key1"=>"value1", "key2"=>"value2",  "cow"=>"bovine", 12=>"dodecine" }

A hash (literal) is "a list of key => value pairs between braces" (from 
pickaxe2).

When you iterate through the hash, you are iterating through the key=>value 
*pairs*--on the first iteration you get the values "key1"=>"value1", on the 
2nd iteration you get "key2"=>"value2", and so on.  Note that you get *two* 
values.

Randy Kramer