From: Gary Wright <gwtmp01@...>
Date: 2008-01-04T09:09:14+09:00
Subject: Re: Troubles with blocks


On Jan 3, 2008, at 6:49 PM, Holden Holden wrote:
> Ruby:
>
> t = []; ['a','b','c'].each_with_index { |*x| t << x }; t
> => [["a", 0], ["b", 1], ["c", 2]]
>
> Which is a very ugly solution. How could I do this on Ruby without a
> temporal variable?

In Ruby 1.8:

require 'enumerator'
%w{a b c}.enum_for(:each_with_index).to_a


In Ruby 1.9:

%w{a b c}.each_with_index.to_a

Gary Wright