From: Austin Ziegler <austin@...>
Date: 2003-08-05T03:25:31+09:00
Subject: Re: clearing a parameter in Ruby?

On Tue, 5 Aug 2003 02:36:32 +0900, Roy Patrick Tan wrote:
> is it possible to write a method that can "clear" a parameter in Ruby?
> That is can a write a method "push" such that for the code below:
> 
> x = "Hello"
> string_stack.push(x)
> puts x
> 
> the output will be nil instead of "Hello"?

No. x is a local variable that refers to "Hello". A method can't affect an 
outer local variable.

Why do you wish to do this? We might be able to help you figure out a better 
way to do what you're trying to do.

-austin
--
austin ziegler    * austin@halostatue.ca * Toronto, ON, Canada
software designer * pragmatic programmer * 2003.08.04
                                         * 14.23.07