From: duxieweb <duxieweb@...>
Date: 2009-11-15T17:52:02+09:00
Subject: very newbie question

Hello,

I run these in irb:

irb(main):001:0> queue=0
=> 0
irb(main):002:0> if !queue then print "The queue is empty." end
=> nil

why the result is nil?
I thought it should be printing "The queue is empty."

Thanks.