From: "David A. Black" <dblack@...>
Date: 2005-07-11T19:48:06+09:00
Subject: Re: accessing index inside map

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Hi --

On Mon, 11 Jul 2005, [iso-8859-1] "Pe=F1a, Botp" wrote:

> OK, i'll be shooting for the moon here. How about passing a parameter? Is=
 it
> then possible to make #each or #map same behavior w #each_with_index or
> #map_with_index or whatever *_with_index so that the ff works,
>
> def each(with_index=3Dtrue) do... end
>
> def map(with_index=3Dtrue) do ... end
>
> and thus, we can do
>
> [1,2,3,4,5,6].map(true) {|x,i|[2,5].include?(i) ? x : x*2}

I'd hope not to see that.  I'm actually hoping that maybe someday all
the boolean flag methods (like instance_methods(true) etc.) will be
changed :-)  They've always seemed to me to be the most cryptic thing
in all of Ruby.


David

--=20
David A. Black
dblack@wobblini.net
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