From: Robert Klemme <shortcutter@...>
Date: 2011-07-25T16:11:57+09:00
Subject: Re: Better name for #zip_with

On Mon, Jul 25, 2011 at 1:16 AM, Intransition <transfire@gmail.com> wrote:

> I'm starting to think, however, that it makes more sense to add
> optional arguments to #map itself. Consider that #zip returns an assoc
> array, that's it's expected behavior. So it's probably best not to
> alter that. Whereas map can return any form of array based on the
> block.
>
>    [1,2,3].map([2,3,4], [5,6,7]) { |a,b,c| ... }

Wouldn't that be

[1,2,3].map([2,3,4], [5,6,7]) { |a,b| ... }

?

> Map has free arguments, so why not?

Orthogonality probably.  And it is not entirely clear whether map +
zip is the most common or most useful use.  Others may want to use
arguments to #map for #grep like selection or even other uses.  Who
decides which use wins and becomes standard?

Kind regards

robert


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