From: Marcel Ward <wardies@...>
Date: 2006-10-30T04:13:25+09:00
Subject: Re: !x.include? y

On 29/10/06, Giles Bowkett <gilesb@gmail.com> wrote:
> ...
> list.reject! {|thing| not list_of_acceptable_values.include? thing.attribute}
>
> is there a nicer way to do it?

You could modify the Array class to include an accept! method that
does the opposite of reject!  (I'm sure someone else will chime in if
this is wrong or bad practise!)

class Array
  def accept!
    delete_if {|item| not yield item}
  end
end

-- 
Marcel