From: "Mr. Bill" <mrbillhaxor@...>
Date: 2011-01-17T23:45:03+09:00
Subject: Re: what's the difference between these two snippets of ruby?

Got it. Thank you much.


Josh Cheek wrote in post #975146:
> On Sat, Jan 15, 2011 at 8:06 AM, Mr. Bill <mrbillhaxor@yahoo.com> wrote:
>
>> File.dirname(yaml_path))
>>
>> --
>> Posted via http://www.ruby-forum.com/.
>>
>>
> The second version modifies config['parent']
>
> If you want the second version, which is much easier to understand, imo.
> But
> don't want the side effect of changing the config hash, then use gsub
> without the bang, and assign it to a local variable:
>
> parent = config['parent'].gsub("${project_dir}", PROJECT_ROOT)
> parent_path = File.expand_path( parent , File.dirname(yaml_path) )

-- 
Posted via http://www.ruby-forum.com/.