From: Phillip Hutchings <sitharus@...>
Date: 2006-06-28T11:46:26+09:00
Subject: Re: Why Include and Require?

On 6/28/06, Mark Sargent <coolboarderguy@gmail.com> wrote:
> HI All,
>
> with our volunteer teacher absent last night, our class was left to ponder
> things for ourselves. We were looking at a ruby equivalent for cp and came
> upon something that we all didn't understand. In the below code, small as it
> may be,
>
> #!/usr/local/bin/ruby
>
> require 'fileutils'
> include FileUtils::Verbose
> cp("methround.rb", "newmethround.rb")
>
>
> we wondered why we required to use require and include before the code would
> work. Naturally, if we removed the, "::Verbose" it still worked. Why require
> and then include fileutils? Cheers.
>
> Mark Sargent.
>
>

require loads the files, include includes a module in to a class.

In this case you're including FileUtils::Verbose in to the Object
class. Removing Verbose works as FileUtils also includes cp, but
::Verbose uses the Verbose version of cp.

-- 
Phillip Hutchings
http://www.sitharus.com/