From: Ruby Newbee <rubynewbee@...>
Date: 2009-12-14T12:16:50+09:00
Subject: about object methods

Hello,

I have two questions,

1. what's the difference between class method and module method?
2. when I say: Dir.pwd, is this a class method or a module method? How
to know if Dir is a module or a class?


Thanks.