Ruby Midwest 2013 Functional Principles for OO Development by Jessica Kerr

So you consider yourself an Object Oriented developer? Ruby isn't limited to an OO style! See what functional programming can do for us, without learning any new language. These six principles of functional style apply in OO code. Some of these principles you already use; some express patterns old and new; all give us different ways of thinking about problems. Developers without expertise in functional programming will find new techniques for thinking and coding in Ruby.

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