From: Robert Dober <robert.dober@...>
Date: 2008-07-08T04:30:12+09:00
Subject: Re: implementing a simple and efficient index system

On Mon, Jul 7, 2008 at 5:55 PM, Dave Bass <davebass@musician.org> wrote:
> Robert Dober wrote:
>>> Thanks, that's exactly what I was looking for! I didn't know set
>>> basically works like a hash without a key...
>>
>> make that "without a value".
>
> For sets in Perl I've used hashes with an arbitrary value of 1, or
> undef. In Ruby I guess that would be values of true or nil. Any better
> suggestions, apart from using Set of course?

true might be a better choice than nil ;)

{}[42] --> nil

R.