From: Robert Klemme <shortcutter@...>
Date: 2006-10-29T20:25:12+09:00
Subject: Re: Define a hash using %q?

Logan Capaldo wrote:
> Alternative decandence:
> 
> class Array
>   def to_hsh
>     require 'enumerator'
>     to_enum(:each_slice, 2).to_a.inject({}) { |h, (k, v)| h.update(k=>v) }
>   end
> end

This seems a bit inefficient.  If you write a method then I'd prefer

require 'enumerator'
module Enumerable
   def to_hash
     h = {}
     to_enum(:each_slice, 2).each {|k,v| h[k]=v}
     h
   end
end

irb(main):021:0> %w( a b c d ).to_hash
=> {"a"=>"b", "c"=>"d"}
irb(main):022:0> (1..10).to_hash
=> {5=>6, 1=>2, 7=>8, 3=>4, 9=>10}

Kind regards

	robert