From: "RubyTalk@..." <rubytalk@...>
Date: 2009-05-09T07:59:37+09:00
Subject: NilClass and Comparable

>> nil==0
=> false
>> class NilClass
>> include Comparable
>> def <=>(other)
>>  0
>> end
>> end
=> nil
>> [1,nil,2].sort
ArgumentError: comparison of Fixnum with nil failed
	from (irb):11:in `sort'
	from (irb):11
>> p nil > 2
false
=> nil
>> p nil > -1
false
=> nil
>> p nil == 0
true
=> nil



What I am missing here?