From: "Jesús Gabriel y Galán" <jgabrielygalan@...>
Date: 2008-05-08T21:28:21+09:00
Subject: Re: Any reason why this code should not work - The Ruby Way, p270

On Thu, May 8, 2008 at 2:09 PM, Victor Reyes <victor.reyes@gmail.com> wrote:
> I lifted the following code from The Ruby way and tried to use it.
> It does not output anything.
> Do anyone knows why?
>
> Thank you
>
> Victor
>
> ##############################
> # This code adds a count method to the Array class
> # This code was lifted from:
> #  The Ruby Way
> #  Second Edition
> #  By: Hal Fulton
> #  Page: 270
> ##############################
> class Array
>       def count
>            k=Hash.new(0)
>            self.each{|x| k[x]+1 }

I think this line should be
               self.each{|x| k[x] += 1}

(notice the = sign, so the value gets assigned to the key).
Otherwise you are never adding entries to the hash

>            k
>       end
> end

Hope this helps,

Jesus.