From: Chris Carter <cdcarter@...>
Date: 2007-04-29T23:11:06+09:00
Subject: Re: Array.which_long? ( I coded an extension for Array )

On 4/29/07, Billy Hsu <ruby.maillist@gmail.com> wrote:
> Hi, I'm CFC
> I'm new at here.
> Nice to meet you:)
>
 > I just coded an extension for Array.
> It will return the longest element of an array.
> Source:
>
> class Array
>   def which_long?
>     # Version 1.0
>     # Coded by CFC < zusocfc @ gmail . com >
>     # PLEASE DO NOT REMOVE THE COMMENT OF THIS FUNCTION, THANKS A LOT.
>     # Usage:
>     #   ['a', 'ab', 'abc' 1234].which_long?
>     #   => 1234
>     max, long, self_cpy = 0, "", []
>     self.size.times{|i| self_cpy << self[i].to_s}
>     self_cpy.each{|item| (max = item.size; long = item) if item.size > max }
>     long
>   end
> end
>
> Usage:
>   puts [1, 23, '456'].which_long?
>   => 456
>
> CFC --
>
How about:
class Array
  def longest
    self.map {|x| x.to_s }.sort_by {|x| x.size}[-1]
  end
end

-- 
Chris Carter
concentrationstudios.com
brynmawrcs.com