From: Hugh Sasse Staff Elec Eng <hgs@...>
Date: 2000-08-07T13:30:43+01:00
Subject: [ruby-talk:04327] Re: TABWTDI and Hash.new([])

On 28 Jul 2000, Dave Thomas wrote:

Having been away for a week...

> matz@netlab.co.jp (Yukihiro Matsumoto) writes:
> 
> > I'm thinking of another way:
> > 
> >      Hash.new{[]}
> > 
> > This means if the key is not found in the hash, evaluate given block
> > and returns its value as default.  In this example, the block creates
> > new array for each execution.
> 
> That's far more general - I like this a lot.
> 
> 
I agree with those sentiments as well.  I wonder if this would be worth
extending more gnerally, so user-created classes can use it?

	Thank you,
	Hugh
	hgs@dmu.ac.uk