Comments on: Use self explicitly http://www.rubyfleebie.com/use-self-explicitly/ Because programming should be fun Mon, 08 Sep 2008 09:47:01 +0000 http://wordpress.org/?v=2.1.2 By: Gabe http://www.rubyfleebie.com/use-self-explicitly/#comment-136 Gabe Tue, 17 Apr 2007 18:52:45 +0000 http://www.rubyfleebie.com/use-self-explicitly/#comment-136 This is one of those simple things I didn't know until I read Ruby for Rails. I highly recommend that book for illuminating numerous small details like this. Pickaxe is a great reference, but it glosses over a lot of those details in favor of a comprehensive picture of the language. Another one of these little gotchas is that referencing a non-existent local variable or method raises an exception, whereas a non-existent instance variable returns nil. This is one of those simple things I didn’t know until I read Ruby for Rails. I highly recommend that book for illuminating numerous small details like this. Pickaxe is a great reference, but it glosses over a lot of those details in favor of a comprehensive picture of the language.

Another one of these little gotchas is that referencing a non-existent local variable or method raises an exception, whereas a non-existent instance variable returns nil.

]]> By: James Crisp » Can you spot the bug? http://www.rubyfleebie.com/use-self-explicitly/#comment-309 James Crisp » Can you spot the bug? Sat, 28 Jul 2007 09:20:24 +0000 http://www.rubyfleebie.com/use-self-explicitly/#comment-309 [...] The answer lies in the fact that Ruby requires an explicit self reference when using attribute writers (aka, property setters) within the class itself. This feels clunky to me, but for your information, here’s a rationalisation of the explicit self requirement. [...] […] The answer lies in the fact that Ruby requires an explicit self reference when using attribute writers (aka, property setters) within the class itself. This feels clunky to me, but for your information, here’s a rationalisation of the explicit self requirement. […]

]]> By: Ruby’s not ready - glyphobet • глыфобет • γλυφοβετ http://www.rubyfleebie.com/use-self-explicitly/#comment-553 Ruby’s not ready - glyphobet • глыфобет • γλυφοβετ Mon, 07 Apr 2008 20:31:44 +0000 http://www.rubyfleebie.com/use-self-explicitly/#comment-553 [...] at least one case that requires self as an explicit reciever: when calling an attribute writer. Otherwise you’re just shadowing the attribute writer method locally. It’s not clear [...] […] at least one case that requires self as an explicit reciever: when calling an attribute writer. Otherwise you’re just shadowing the attribute writer method locally. It’s not clear […]

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