From: HarryO <harryo@...>
Date: 2002-01-06T04:14:33+09:00
Subject: [ruby-talk:30296] Re: Ruby article on Freshmeat

On Sun, 06 Jan 2002 06:41:28 +1100, Yuri Leikind wrote:


> Actually, expressions like string.capitalize! are evaluated to nil:
> 
> string.capitalize!  ==>  nil

That only happens if the method doesn't change the object. So, ...

   "hello".capitalize! # => "Hello"

whereas

   "Hello".capitalize! # => nil

because it was already capitalised.