From: Robert Dober <robert.dober@...>
Date: 2011-06-29T17:17:17+09:00
Subject: Re: Symbol#===

On Tue, Jun 28, 2011 at 6:44 PM, Josh Cheek <josh.cheek@gmail.com> wrote:
> On Tue, Jun 28, 2011 at 10:04 AM, Robert Dober <robert.dober@gmail.com>wrote:
<snip>
Duly noted ;) I do not change my POV but I will not evangelize of course.

> I think your example of map(:+, 42) would be better achieved with more
> functional support. Something along these lines:
> def f(meth, *args)
>  Proc.new do |obj|
>    obj.send meth, *args
>  end
> end
> nums = [10, 20, 30]
> nums.map(&(f :+, 5)) # => [15, 25, 35]
> nums.map(&(f :-, 5)) # => [5, 15, 25]
>
Using, what I believe is, a functor is indeed a nice idea. N.B. I have
nothing against #to_proc in general.
Cheers
R.
-- 
I'm not against types, but I don't know of any type systems that
aren't a complete pain, so I still like dynamic typing.
--
Alain Kay