From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2009-10-01T21:36:01+09:00
Subject: Re: how do you do this

On Thu, Oct 1, 2009 at 2:23 PM, George George <george.githinji@gmail.com> wrote:
> Given an array of strings e.g.
>  x = ["abc","abcde" "def","xyzwj"] and of different lengths,
> how can you efficiently create new arrays of strings which are of the
> same length. for example the above array can be transformed into
>
> x1 = ["abc","def"]
> x2 = ["abcde","xyzwj"]

You might want to look at group_by:

 %w{abc ads adfdf adfdw fefm mfekmw fmdms}.group_by {|x| x.length}

Jesus.