From: Robert Dober <robert.dober@...>
Date: 2008-09-12T22:18:16+09:00
Subject: Re: Redefe each to include each_with_index and arity=2

On Wed, Sep 10, 2008 at 7:53 PM, DanDiebolt.exe <dandiebolt@yahoo.com> wrote:
> arity=2
> arity=-1

Where do you think the arity=-1 does come from? Does this ring a bell?

Actually each_with_index will use a block with *args calling each again.
Now that brings us to why your idea might not be as good as you
thaught at first sight:

[[:a, 42], [:b,43]].each{ |a,b| puts "#{a} => #{b}" }

you see the arity of the block of each is indeed something which might
vary with the usecase.

HTH
Robert
-- 
C'est véritablement utile puisque c'est joli.

Antoine de Saint Exupéry