From: Morgan Grubb <morgan.grubb@...>
Date: 2007-08-21T01:20:42+09:00
Subject: Assignment as a reference?

------=_Part_124778_27640752.1187626847697
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Hi,

I ran into a simple issue earlier with assignment seeming to make
references. I'm new to Ruby so perhaps this is how it's supposed to be. Here
is an abridged version of what happened:

foo = 'bar' #=> bar
foo2 = foo #=> bar
foo = foo.gsub 'bar', 'wibble' #=> wibble
foo2 #=> bar

foo = 'bar' #=> bar
foo2 = foo #=> bar
foo.gsub! 'bar', 'wibble' #=> wibble
foo2 #=> wibble

You can paste those straight into irb and get the same output. Could someone
please explain why the second example changes foo2?


Cheers,
Morgan Grubb.

------=_Part_124778_27640752.1187626847697--