From: Charles Mills <cmills@...>
Date: 2004-08-03T11:32:35+09:00
Subject: Re: Request for two methods in Array class

On Aug 2, 2004, at 6:51 PM, Charles Mills wrote:

> On Aug 2, 2004, at 1:21 PM, Ara.T.Howard wrote:
>
>> On Tue, 3 Aug 2004, Michael Neumann wrote:
>>
>>> It's the same length:
>>>  a.zip(b).map {|x,y| x*y}
>>>  # vs.
>>>  a.combine(b) {|x,y| x*y}
>>
>> but one less object creation
>>
>>> But I must say, that I like the name combine a lot.
>>
>> ditto.
> Seems like a good idea.  After reading the chapter of Meyers book  
> Lothar sent, the idea seems even better.
> Another name idea is collect_wtih
> c = a.collect_with(b) { |x,y| x*y }
> a.collect_with!(b) { |x,y| x*y } # looks bad?
> d = a.collect_with(b, c) { |x,y,z| x*y*z } # multiple params would be  
> useful
>
Looks like this has been talked about by others:
http://www.ai.mit.edu/~gregs/ll1-discuss-archive-html/msg03386.html
http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-list/29671

still seems useful to me though
c = a.collect_with(keys) { ... }
> -Charlie
>
>>
>> -a
>> --
>> ====================================================================== 
>> =========
>> | EMAIL   :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
>> | PHONE   :: 303.497.6469
>> | A flower falls, even though we love it;
>> | and a weed grows, even though we do not love it. |   --Dogen
>> ====================================================================== 
>> =========
>>
>
>