From: matz@... (Yukihiro Matsumoto)
Date: 2003-03-27T16:44:27+09:00
Subject: Re: Anyone ever confused by Array#slice! method?

Hi,

In message "Anyone ever confused by Array#slice! method?"
    on 03/03/27, "Hal E. Fulton" <hal9000@hypermetrics.com> writes:

|3. Some bang methods return nil if the object is
|not actually changed: gsub!, delete!, others.

All but reverse!, sort!, and exit!

|4. Now here's a trivia question. What bang method
|appears in two different core modules and (it 
|could be argued) does not really change its 
|receiver? (OK, in a way it does. Don't quibble with
|me.)

exit! does not modify anything.  Its ! means "more dangerous" than non
bang version. 

							matz.