From: Mauricio Fernandez <mfp@...>
Date: 2006-01-03T21:12:09+09:00
Subject: Re: sort_by{rand} doesn't shuffle array

On Tue, Jan 03, 2006 at 08:54:33PM +0900, Devin Mullins wrote:
> Mauricio Fernandez wrote:
> 
> >On Tue, Jan 03, 2006 at 07:03:42PM +0900, Pat Maddox wrote:
> > 
> >
> >> def shuffle!
> >>   @my_array.sort_by{rand}
> >>   
> >>
> >     @my_array = @my_array.sort_by{rand}
> > 
> >
> or      @my_array.sort_by! { rand }

RUBY_RELEASE_DATE                                  # => "2005-12-24"
RUBY_VERSION                                       # => "1.8.4"
%w[a b c d].sort_by!{rand}                         # => 
# ~> -:3: undefined method `sort_by!' for ["a", "b", "c", "d"]:Array (NoMethodError)

-- 
Mauricio Fernandez