See for instance ; There is no huge gain to be found here. Meta-programming might be somewhat harder in static languages. This book is a great demonstration of the power of that combination. Write your tests as if you expect your future self to have amnesia. Perfect for those beginning with Ruby on Rails and developers with plenty of knowledge but not enough practical and theoretical knowledge of Rails. The big selling point is that Sandi writes from a highly practical point of view.
The Web is awash in Ruby code that is now virtually impossible to change or extend. It is important that a well-defined interface exist than it be perfect. I think it's definitely a must have in your library as a reference. It's become so much clearer now, it's like the idea just popped into my head. She's neither patronizing nor overly complicated when explaining topics, but rather finds a great ba I love the Ruby language and I have loved it pretty much from the first time I found out about it.
I already feel that I've learn a lot and can't wait to apply all this new knowledge on my next and existing projects. Even in well written code it is likely that such refactorings are so hard to perform that I will just not do it. Pragmatic Bookshelf, 2016 Sam Ruby Another book that is worth reading, with the fifth edition updated to include Rails 5 and Ruby 2. My brain loves creating connections between concepts, and coming up with abstractions to depict situations, problems and solutions. I've done these types of refactorings in dynamic languages. They use tools that do this automatically in the background for them.
I will definitely try to use this technique more in the future. She has spoken about object-oriented design and refactoring at international Ruby conferences since 2009. The code examples presented were very concise and easy to follow thanks, Ruby! There are a plethora of libraries and frameworks, written in static languages, out there that are based on meta programming. Whatever your relationship to Ruby as a programming language, the principles outlined in this book cut deeply and across all areas of day-to-day work of a developer and provide profound insight on things that might have seemed to a novice or a developer initiate as trivial or not even worth attention. This book has tangibly and immediately helped me improve as a programmer and increased my chances of advancing in my career by giving me higher levels of knowledge of important concepts in coding.
There aren't many programming book I loved it. I have never worked with Ruby, but that's not a problem for getting all its value. The first title to focus squarely on object-oriented Ruby application design, Practical Object-Oriented Design in Ruby will guide you to superior outcomes, whatever your previous Ruby experience. The thing about Sandi Metz is she has that wonderful mix of good communication and years of experience. You can see it right there in the code.
In my humble opinion, this book's greatest strength lies in its advice to think first not of objects themselves and their responsibilities, but as actors and messages passed between them. Those concepts revolve around creating extensible applications via tools like duck-typing, inheritance, composition, managing dep Essential reading for anyone looking to improve their skills in building applications in Ruby though the concepts could likely be applied to any dynamically typed language. It touches on design best practices and concepts really clearly and gives easy to understand examples of subjects like: Single responsibility principle, the law of Demeter, duck typing, inheritance, composition, testing and more. Even if the design of good unit tests can be a book on itself, Sandi manage to provide enough information to start creating better tests on your Ruby applications. The continuous narrative helps you see how the pieces fit together, though a few examples from other domains would have been helpful in some places. At the last chapter, Sandi tells us a fresh view about testing, with concepts of inbound message, outbound message. Alongside reading, tutorials and videos, when beginning with Ruby On Rails you should always include practical lessons, exercise and experiences.
Russ is keen to ensure technology serves the needs of people, not the other way round and has a keen interest in exploring new technology, including Clojure and 3D printing. Some techniques are useful at different points in that process, and sometimes, business constraints don't allow for constructing perfect software, if such a thing were even possible. See inside book for details. That, dear reader, is exactly what static typing is for, and in 2014, we do have type inference even in C++. Each error message is a small thing, but small things accumulate to produce big effects and it is this attention to detail that marks you as a serious programmer. This text helps you solve that problem by using powerful real-world object-oriented design techniques, which it thoroughly explains using simple and practical Ruby examples.
Sandi Metz has distilled a lifetime of conversations and presentations about object-oriented design into a proven set of Ruby-focused practices for crafting manageable, extensible, and pleasing code. The Web is awash in Ruby code that is now virtually impossible to change or extend. Perhaps you already knew this; I didn't, and doing so has been a tremendous new tool in my arsenal to tackle problems. That being said I really enjoyed the book and I will definitely recommend it to colleagues. This book has tangibly and immediately helped me improve as a programmer and increased my chances of advancing in my career by giving me higher levels of knowledge of important concepts in coding. Although I've applied parts of the idea, like ensuring interface adherence for ducks and hierarchies, I often missed proper tests for the stubs used in the consumer related specs.
Fully updated for Ruby 2. I read this book in a time where functional programming is gaining a lot of traction and it was both refreshing and reassuring to read it. The Web is awash in Ruby code that is now virtually impossible to change or extend. Starting with a story about technical debt, sandi metz lead us step by step through obstacles we have to face when designing a program. The story they tell remains true long after paper documents become obsolete and human memory fails. The only thing I didn't like are code examples with real-world objects like Bike, Gear and Mechanic. I'll be referencing this book a lot every time I'm working in a new app till I get everything in it right.
It's become so much clearer now, it's like the idea just popped into my head. In my opinion the greatest of these tools are the refactoring tools. The ideas it presents are useful not just in Ruby but in static languages like C too. It includes some of the best Ruby On Rails books on the market, with up-to-date practical examples, lessons and techniques. While reading it, I couldn't drop the book for the life of me.