From: Frederick Cheung <frederick.cheung@...>
Date: 2008-01-25T02:32:05+09:00
Subject: Re: why must I initialize this variable?


On 23 Jan 2008, at 23:02, Curt Sampson wrote:

> On 2008-01-23 02:40 +0900 (Wed), matt neuburg wrote:
>
>> puts "#{result}" if (result = h[k])
>>
>> ...I get an error...
>> Another way of understanding my confusion is to notice that this  
>> *does*
>> work:
>>
>> if (result = h[k]) then puts "#{result}" end
>
> This is just one of those little annoyances in Ruby. You'll
> find things like this all over the place.

Another corner case is

foo #=> NameError: undefined local variable or method `foo' for  
main:Object
if false then foo=1;end
foo #=> nil

Fred



>
>
> You may or may not get used to it. I never have, but I live with it
> while waiting for the perfect language to come along.
>
> cjs
> -- 
> Curt Sampson       <cjs@starling-software.com>        +81 90 7737 2974
> Mobile sites and software consulting: http://www.starling-software.com
>