From: Lionel Bouton <lionel-subscription@...>
Date: 2007-11-04T05:41:40+09:00
Subject: Re: x=[:some_key] does not work?

Joshua Muheim wrote:
> Ups I'm sorry, I messed things up because PHP uses [] for both arrays 
> and hashes.
>
> x = array();
> x["bla"]["some_key"] = true;
>
> Is Ruby not capable of doing this?
>
> x = {}
> x[:bla][:some_key] = true
>   
For a 2-dimensional Hash you can use:

h = Hash.new({})

See the documentation of the initialize method of the Hash class. Here
it basically tells the object to use a default value (an empty hash) for
uninitialized keys.

Lionel