From: "Einar Magnús Boson" <einarmagnus@...>
Date: 2008-11-27T12:53:04+09:00
Subject: Re: How to use a passing argument(returned argument)?


On 27.11.2008, at 03:06 , Lloyd Linklater wrote:

>>   a = 22
>>   b = 33
>>   swap(ref{:a}, ref{:b})
>>   p a                       # => 33
>>   p b                       # => 22
>
>
> instead of swap(ref{:a}, ref{:b})
>
> why not a, b = b, a
> -- 
> Posted via http://www.ruby-forum.com/.
>

Because his question was about references, swap was just an example.

einarmagnus