From: Yukihiro Matsumoto <matz@...>
Date: 2005-07-11T10:58:57+09:00
Subject: Re: accessing index inside map

Hi,

In message "Re: accessing index inside map"
    on Mon, 11 Jul 2005 10:50:31 +0900, "Pe�a, Botp" <botp@delmonte-phil.com> writes:

|#  (1..6).each_with_index.map{|x,i|[2,5].include?(i) ? x : x*2}
|#
|#then.  It's much simpler isn't it?

|but isn't 
|    each_with_index.map
|
|so close to being
|    map_with_index
|
|?

Yes.  But when we add map_with_index, we might be asked to add
collect_with_index, detect_with_index, inject_with_index, and all
other enumerable methods _with_index as well.

							matz.