From: SonOfLilit <sonoflilit@...>
Date: 2007-06-10T18:34:15+09:00
Subject: Re: Finding entries in Windows Registry matching a RE

In Ruby, "constant" means that it's value should not change (that's
actually just a syntactical convention - you'll only get a value if
you try A=8; A=9). It also means that it will be stored in a different
table (or at least treated like it was, with different methods to
access it etc' - I'm not familiar enough with the MRI to comment).

Constants are still Ruby variables, which means that they can store a
reference to any Ruby object.

E.g.:

ERROR_STREAM = File.open("log.txt")

If you're interested in great uses of constants (and class methods
that behave like it was just a constant) try learning how to use
_why's ingenious Camping. It is full of amazing uses for those. It's
an afternoon to learn, especially if you're familiar with Rails.


Aur