extending nil methods

it seems my previous post didn't get through for some reason, so sorry
if this is duplicated.

has anyone done something like this?

class NilClass
  def empty?; true; end
  def strip; nil; end
  def [](s); nil; end
end

so you can do this without throwing exception
if !params[:s].empty?
if !params[:s][:e].strip.empty?

as opposed to:
if params[:s] && !params[:s].empty?
if params[:s] && params[:s][:e] && !params[:s][:e].strip.empty?

I'm just wondering is there negative effects of doing this? if not
then shouldn't we be doing this. it makes your code look a lot nicer
doesn't it? :slight_smile:

- reynard

hmm is google group broken? my post never seems to get through. did anyone get this message?