From: Harry Kakueki <list.push@...>
Date: 2009-10-02T00:04:22+09:00
Subject: Re: how do you do this

On Thu, Oct 1, 2009 at 9:23 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"]
>
> Thank you.
>


p x.map{|a| a.length}.uniq.map{|b| x.select{|c| c.length == b}}

#> [["abc", "def"], ["abcde", "xyzwj"]]


Harry

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