From: Sam Roberts <sroberts@...>
Date: 2003-04-27T01:31:45+09:00
Subject: Re: Hashes and Enumerable#each_with_index

Quoteing rpav@nwlink.com, on Fri, Apr 25, 2003 at 07:26:01AM +0900:
> OK, looking at the archives I know this was discussed a few years ago,
> but there seems to be no real conclusion or improvement since then.
> 
> The problem:  Hash#each_with_index returns an index that is not usable
> to address the hash.  That is, given the following:
> 
>     h = Hash.new
>     h.each_with_index {
>         | o, i |
>         ...
>     }
> 
> i is not defined such that h[i] == o, which is both misleading and
> seemingly useless.  (This behavior, as per the previous discussion, can
> be achieved with h.to_a.each_with_index.)

This function already exists, for a Hash its called Hash#each.

I guess Hash could override the each_with_index it gets from enumerable,
aliasing it to each, but that seems like it would be LESS useful, not
more useful.

Sam