From: Tomaso Tosolini <tomaso.tosolini.gmail.com@...>
Date: 2008-01-05T01:25:00+09:00
Subject: Re: iterating over array of variables - can't change them?

AJS wrote:

> title="Title"
> subtitle="Subtitle"
> body="Body"
> [title,subtitle,body].each {|item| item.downcase!}
> 
> This successfully sets the original variables to "title", "subtitle",
> "body"
> 
> BUT
> 
> [title,subtitle,body].each {|item| item=""}

Hi 
item="" sets item to reference to another string instead of the original at
the beginning of the block

 try this

[title,subtitle,body].each {|item| 

        x = item
        item="" 
        # this make item go to point away from it's original value

        p x.inspect 
        # but x hasn't lost it's reference to initial value so it still
        #works
}


Tom
> 
> has no effect.
> 
> Why doesn't this work? How can I make it work?
> 
> thanks