From: Vitor Peres <dodecaphonic@...>
Date: 2007-11-28T21:46:36+09:00
Subject: Re: Ruby needs continuations...

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On Nov 28, 2007 10:30 AM, Just Another Victim of the Ambient Morality <
ihatespam@hotmail.com> wrote:

>
>    How would one do this in Ruby?  You can use .each_with_index and index
> the other list but that assumes that the other list is indexable, which
> only
> happens to be true of arrays but is not true in general.  I've thought
> about
> implementing some Ruby equivalent of zip() (or preferably izip()) and
> discovered that I can't do so without continuations.
>

I can't comment much on the rest of your post, considering I lack knowledge
both on the Python camp and the Ruby camp to make any meaningful
consideration.

Ruby does, however, have an implementation of zip in Enumerable. You can do

list1 = [1, 2, 3, 4]
list2 = ['a', 'b', 'c', 'd']

list1.zip(list2).each {|num, letter| puts "#{num} #{letter}" }

just fine. You'll actually get the same result you would with your Python
example.

Best regards,

Vitor

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