From: dblack@...
Date: 2002-10-10T05:24:09+09:00
Subject: Re: strange Hash default behaviour

Hi --

On Thu, 10 Oct 2002, Bill Tj wrote:

> I am using ruby 1.6.7 (2002-03-01) [i686-linux] and I got the
> following:
>
> hsh = Hash.new ([])
> hsh['a'] << 'a'
> puts hsh.length   # >> 0   ???

What you're doing is adding 'a' to that default array, rather
than setting an 'a' key.  So the above is the same as if you
had done:

  hsh = Hash.new(['a'])

hsh still doesn't have any keys, just a default value.


David

-- 
David Alan Black                      | Register for RubyConf 2002!
home: dblack@candle.superlink.net     | November 1-3
work: blackdav@shu.edu                | Seattle, WA, USA
Web:  http://pirate.shu.edu/~blackdav | http://www.rubyconf.com