Comments on: Identity and Equality in Ruby and Smalltalk http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/ Pure and Simple Mon, 12 Oct 2009 20:32:35 +0000 http://wordpress.com/ hourly 1 By: Ken Treis http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-927 Ken Treis Thu, 18 Dec 2008 23:54:36 +0000 http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-927 You're right, I got it wrong. Thanks for the correction, I've updated the article. You’re right, I got it wrong. Thanks for the correction, I’ve updated the article.

]]> By: Randal L. Schwartz http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-926 Randal L. Schwartz Tue, 16 Dec 2008 17:56:50 +0000 http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-926 Does ruby refer to as rocketship or spaceship? I named that spaceship for Perl. Maybe something got lost in the translation. Does ruby refer to as rocketship or spaceship? I named that spaceship for Perl. Maybe something got lost in the translation.

]]> By: Alhil http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-902 Alhil Wed, 13 Aug 2008 13:38:36 +0000 http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-902 ha ha ha, i face this problem everyday ! ha ha ha, i face this problem everyday !

]]> By: David Baldwin http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-898 David Baldwin Wed, 02 Apr 2008 21:04:46 +0000 http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-898 Seems like an identical? method would be a good alias or replacement for equal? Seems like an identical? method would be a good alias or replacement for equal?

]]> By: Thomas David Baker http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-709 Thomas David Baker Wed, 26 Sep 2007 12:57:53 +0000 http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-709 I've come up against this problem, too. I am writing a program based on a card game. The card game uses two packs of cards. A 7 of Diamonds is equal to the 7 Diamonds from the other pack. But they are not identical. I need object identity in places, but when considering what card to play I don't need the AI to think about 7 Diamonds twice if he has both in his hands. A .uniq on his hand doesn't work for this, but I am loathe to override .eql? to get this behavior. So this is somewhere that ruby isn't quite working for me. That said, the Comparable mixin that gives you a lot for simply defining the spaceship operator () is pretty cool. I’ve come up against this problem, too.

I am writing a program based on a card game. The card game uses two packs of cards. A 7 of Diamonds is equal to the 7 Diamonds from the other pack. But they are not identical.

I need object identity in places, but when considering what card to play I don’t need the AI to think about 7 Diamonds twice if he has both in his hands. A .uniq on his hand doesn’t work for this, but I am loathe to override .eql? to get this behavior.

So this is somewhere that ruby isn’t quite working for me. That said, the Comparable mixin that gives you a lot for simply defining the spaceship operator () is pretty cool.

]]> By: Egalité et identité en Smalltalk et Ruby at #doesNotUnderstand: http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-4 Egalité et identité en Smalltalk et Ruby at #doesNotUnderstand: Fri, 09 Feb 2007 17:46:17 +0000 http://kentreis.wordpress.com/2007/02/08/identity-and-equality-in-ruby-and-smalltalk/#comment-4 [...] Smalltalk Tidbits, Industry Rants) Ce billet présente les différences syntaxiques entre Smalltalk et Ruby en ce qui concerne l’égalité et [...] [...] Smalltalk Tidbits, Industry Rants) Ce billet présente les différences syntaxiques entre Smalltalk et Ruby en ce qui concerne l’égalité et [...]

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