From: Ryan Davis <ryand-ruby@...>
Date: 2007-02-05T18:25:08+09:00
Subject: Re: :foo is the same as "foo" (but only sometimes!) (was Re: Hash#rekey)


On Feb 3, 2007, at 12:46 PM, Logan Capaldo wrote:

> Incidently, I'd like to point out why I think that's an especially bad
> idea (only equivalent in hashes)
> ["foo", :foo, 2].uniq #=> ["foo", 2]
> [1, 1.0, 2].uniq #=> [1, 1.0, 2]
> But; 1 == 1.0 and :foo != "foo" (at least if the equality _only_  
> applies
> in hashes, in #hash and #eql? IOW).

Not anymore:

% ./ruby-19 -v -e 'p ["foo", :foo, 2].uniq'
ruby 1.9.0 (2007-02-05 patchlevel 0) [i686-darwin8.8.1]
["foo", :foo, 2]