This is the eBook version of the printed book.Most design pattern books are based on C++ and Java. But Ruby is different–and the language's unique qualities make design patterns easier to implement and use. In "Design Patterns in Ruby," Russ Olsen demonstrates how to combine Ruby's power and elegance with patterns, and write more sophisticated, effective software with far fewer lines of code.After reviewing the history, concepts, and goals of design patterns, the author offers a quick tour of the Ruby language–enough to allow any experienced software developer to immediately utilize patterns with Ruby. The book especially calls attention to Ruby features that simplify the use of patterns, including dynamic typing, code closures, and "mixins" for easier code reuse.Fourteen of the classic "Gang of Four" patterns are considered from the Ruby point of view, explaining what problems each pattern solves, discussing whether traditional implementations make sense in the Ruby environment, and introducing Ruby-specific improvements. You'll discover opportunities to implement patterns in just one or two lines of code, instead of the endlessly repeated boilerplate that conventional languages often require."Design Patterns in Ruby" also identifies innovative new patterns that have emerged from the Ruby community. These include ways to create custom objects with metaprogramming, as well as the ambitious Rails-based "Convention over Configuration" pattern, designed to help integrate entire applications and frameworks.Engaging, practical, and accessible, this book will help you build better software while making your Ruby programming experience more rewarding.
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