From: Tom Link <micathom@...>
Date: 2009-02-07T15:15:46+09:00
Subject: Re: Special Hash Constructors

> def Hash.with(default=nil)
>   new { | h, k | h[k] = default.dup }
> end

Not so good:

> h = Hash.with(0)
> h[1]
TypeError: can't dup Fixnum

I personally would appreciate a special constructor for Arrays.