From: Trans <transfire@...>
Date: 2006-10-08T19:25:17+09:00
Subject: Re: nil being empty


Mark T wrote:
> Responding to empty? implies that a response to full? is valid.
> Which is unlikely with a nil object.
> The fact that nil exists is fascinating.
> Stepping back one step, I do not like having to deal with it in iteration.
> Though I like it as an initial value of objects.
> I'm surprised iteration has to deal with nil 'especially'.
> I'd like it to be dealt with as a coding stlye-sheet issue.
> Possibly I do not use collections enough.
> A collection which garbage collects nils might help.
>
> All the best to all.

  collection = [ nil, :this, nil, :that ]
  collection.compact => [ :this, :that ]

T.