From: "T. Onoma" <transami@...>
Date: 2003-12-03T23:50:40+09:00
Subject: Re: each_with_what_index?

On Wednesday 03 December 2003 12:23 pm, Gavin Sinclair wrote:
>
> Bugs can be like that sometimes, but there's absolutely nothing
> unintutive about that, unless you want Ruby to start guessing what you
> really mean all the time :)

Saying that there's "absolutely nothing unintutive about that" is a real 
stretch. Obviously, I have asked for certain indexes [1..-1], but we know 
that #[ ] is really just a form of slice, so what we get is a new array, thus 
reindexed form [0..a.length-2]. It's understandable, but I sure wouldn't call 
it intuitive.

> Maybe this is better for you?
>
>   a.each_with_index do |t,i|
>     next if i == 0
>     puts "#{t} => #{a[i]}"
>     # ...
>   end

I did:

   a[1..-1].each_with_index do |t,i|
     puts "#{t} => #{a[i+1]}"
     # ...
   end

Thinking it would be more efficient. Hmm...Or does this have a bug?


T.