From: dblack@...
Date: 2002-09-24T22:25:07+09:00
Subject: Re: select and select

Hi --

On Tue, 24 Sep 2002, Gavin Sinclair wrote:

> Hashes and arrays map keys to values.  The method we are looking for
> returns several values based on several keys.

I think I mentioned the following idea before, but I don't remember
any response to it (and I'm kind of warming to it :-).

Namely:  Enumerable#find_at

It has the following going for it, in my opinion:

1. it has "at" in it (see my last post for why I like "at" more than
   verbs)

2. it makes a nice set with #find and #find_all:

   a = %w{one two three four}
   a.find {|e| e[0] == ?t}       # "two"
   a.find_all {|e| e.size > 3}   # ["three", "four"]
   a.find_at(0,2)                # ["one", "three"]

3. it doesn't already exist :-)


David

-- 
David Alan Black                      | Register for RubyConf 2002!
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