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  • Book Overview & Buying The Ruby Workshop
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The Ruby Workshop

The Ruby Workshop

By : Akshat Paul, Philips, Dániel Szabó , Wallace
3.3 (3)
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The Ruby Workshop

The Ruby Workshop

3.3 (3)
By: Akshat Paul, Philips, Dániel Szabó , Wallace

Overview of this book

The beauty of Ruby is its readability and expressiveness. Ruby hides away a lot of the complexity of programming, allowing you to work quickly and 'do more' with fewer lines of code. This makes it a great programming language for beginners, but learning any new skill can still be a daunting task. If you want to learn to code using Ruby, but don't know where to start, The Ruby Workshop will help you cut through the noise and make sense of this fun, flexible language. You'll start by writing and running simple code snippets and Ruby source code files. After learning about strings, numbers, and booleans, you'll see how to store collections of objects with arrays and hashes. You'll then learn how to control the flow of a Ruby program using boolean logic. The book then delves into OOP and explains inheritance, encapsulation, and polymorphism. Gradually, you'll build your knowledge of advanced concepts by learning how to interact with external APIs, before finally exploring the most popular Ruby framework ? Ruby on Rails ? and using it for web development. Throughout this book, you'll work on a series of realistic projects, including simple games, a voting application, and an online blog. By the end of this Ruby book, you'll have the knowledge, skills and confidence to creatively tackle your own ambitious projects with Ruby.
Table of Contents (14 chapters)
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Service Objects

In previous sections, we learned how to install and include Ruby gems to extend the functionality of our application. We also learned how to interact with files and CSV data. We now know how to read, process, and output data to the screen or the filesystem.

This is useful functionality, although opening files and writing CSV data is something that we would generally consider to be a common functionality that is likely to be shared between classes and can also seem unrelated to the existing classes in our code base.

What do we mean by unrelated? Well, let's assume we have a User class and a Company class in our application. We want the ability to load user and company data and print it to the Terminal for both of these classes. So, where do we write the code for this functionality? In the User class? In the Company class? Or, in both classes?

Possible solutions to the common usage code issue are using modules, service classes, and class inheritance.

...
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The Ruby Workshop
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