From: Farhad Farzaneh <ff@...>
Date: 2010-02-19T10:48:28+09:00
Subject: Re: Ruby conditionals subtlety?

Ryan Davis wrote:
> On Feb 18, 2010, at 16:04 , Farhad Farzaneh wrote:
> 
>>> yet, and hasn't affected the lookup tables.
>> value.  As such, if we're ever going to use defined? as a conditional, 
>> it should precede any other mention of the token (foo).
> 
> I should also point out: almost all of this is of no consequence. You 
> almost never use defined? on a local variable like this. You usually use 
> it on a const, ivar, cvar, or global, and all of those are unambiguous.

Thanks.  I sometimes use it in Rails partials rendering, where I may 
pass an optional local variable, but if it isn't passed, I want to set 
it to some default value.  Perhaps there's a better way of doing this...
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