From: Daniel Sheppard <daniels@...>
Date: 2007-09-26T16:07:34+09:00
Subject: Re: merge two arrays into a hash

 
> require 'generator'
> h = {}
> SyncEnumerator.new(key, value).each{|i| h[i[0]] = (i[1]|| "")}
> p h
> => {'1'=>'a', '2'=>'b', '3'=>''}

When an array is being passed to a block, you can just provide args for
the whole array:

SyncEnumerator.new(key, value).each{|k,v| h[k] = v||''}

Gives you the same result.