From: Gregory Seidman <gsslist+ruby@...>
Date: 2008-06-05T11:18:51+09:00
Subject: Re: double assignation in a hash

On Thu, Jun 05, 2008 at 08:23:53AM +0900, nico Itkin wrote:
> hi !
> 
> I'm new to ruby, i'd like to know if it is possible to make the
> following kind of assignation in a hash, like i used to do in php :
> 
> a={}
> a[:b][:c]="value"
> 
> the goal for me is to create a hash by iterating on keys, like
> 
> hash={}
> [a,b,c].each do |k1|
>   [d,e,f].each do |k2|
>     hash[k1][k2] = afunction(k1,k2)
>   end
> end
> 
> this last code lead to a nil.[] error
> 
> Could you help me ? .

You may find this of interest:

http://redcorundum.blogspot.com/2007/05/just-nifty-meta-meta-tidbit.html

--Greg