From: MenTaLguY <mental@...>
Date: 2008-03-25T08:24:19+09:00
Subject: Re: functions, arguments and changing their value permantent

On Tue, 25 Mar 2008 08:06:38 +0900, Adam Akhtar <adamtemporary@gmail.com> wrote:
> Thank you so much for all of your detailed replies. Some of you asked
> why I wanted to do this and why don`t I just return the value to the
> variable I want to change ala x = doit x
> 
> Well actually my function changes 2 values. Functions can only pass one
> back so I thought I`d pass one as an argument as well. Is that bad
> programming design? What are other options?

You could have the function return multiple values as an array:

 def foo(x, y)
   [ x + y, x * y ]
 end

 sum, product = foo(2, 3)
 puts sum
 puts product

-mental