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[** UPDATE: 21/01/2013 **]: Thanks to Kevin Triplett now there's a Devise wiki page referencing this post and combining the comments. Please check this wiki page, especially if...

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Ruby Enumerables: Operation on hashes

In my last post I talked about Ruby's hash. Today I will resume and complete the argument by describing some of the things you can do to manipulate the hash values. 1. How to i...

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