From: Gavin Kistner <gavin.kistner@...>
Date: 2006-09-09T05:53:53+09:00
Subject: Re: Combine @item.foo.nil? || @item.foo.empty? ?

> unless (@item.foo.nil? || @item.foo.empty?)
> Is there a way to combine these two OR clauses into one?

You could always modify nil so that empty? worked for it:

irb(main):001:0> a = nil
=> nil
irb(main):002:0> a.nil?
=> true
irb(main):003:0> a.empty?
NoMethodError: undefined method `empty?' for nil:NilClass
        from (irb):3
irb(main):004:0> class NilClass; def empty?; true; end; end
=> nil
irb(main):005:0> a.empty?
=> true