From: Denis Defreyne <denis.defreyne@...>
Date: 2009-04-19T06:38:21+09:00
Subject: Re: [ANN] Junctions for Ruby1.9 (Lab419::functional-0.1.2)

On Apr 17, 2009, at 11:17 PM, Robert Dober wrote:

> E.g.
>
>   any(1, 2, 3) > 2     --> true
>   [ 1, 3, 5 ].all.odd? --> true
>   none( 1 ).zero?      --> true
>   all() == nil         --> true
>   any() == nil         --> false

The examples you gave are equivalent to

	[ 1, 2, 3 ].any? { |e| e > 2 }
	[ 1, 3, 5 ].all? { |e| e.odd? }
	![ 1 ].any? { |e| e.zero? }
	[].all? { |e| e == nil }
	[].any? { |e| e == nil }

What advantages does junctions in Ruby provide over #any? and #all? ?

Regards,

Denis

-- 
Denis Defreyne
denis.defreyne@stoneship.org