Book Image

Polished Ruby Programming

By : Jeremy Evans
Book Image

Polished Ruby Programming

By: Jeremy Evans

Overview of this book

Anyone striving to become an expert Ruby programmer needs to be able to write maintainable applications. Polished Ruby Programming will help you get better at designing scalable and robust Ruby programs, so that no matter how big the codebase grows, maintaining it will be a breeze. This book takes you on a journey through implementation approaches for many common programming situations, the trade-offs inherent in each approach, and why you may choose to use different approaches in different situations. You'll start by refreshing Ruby fundamentals, such as correctly using core classes, class and method design, variable usage, error handling, and code formatting. Then you'll move on to higher-level programming principles, such as library design, use of metaprogramming and domain-specific languages, and refactoring. Finally, you'll learn principles specific to web application development, such as how to choose a database and web framework, and how to use advanced security features. By the end of this Ruby programming book, you’ll be a well rounded web developer with a deep understanding of Ruby. While most code examples and principles discussed in the book apply to all Ruby versions, some examples and principles are specific to Ruby 3.0, the latest release at the time of publication.
Table of Contents (23 chapters)
Section 1: Fundamental Ruby Programming Principles
Section 2: Ruby Library Programming Principles
Section 3: Ruby Web Programming Principles


In this chapter, you've learned that Ruby programmers are a diverse group, with different code formatting preferences. You've learned that some Ruby programmers place great value on syntactic consistency, whereas syntactic consistency leads to bland code in the eyes of other Ruby programmers.

Importantly, you've learned that enforcing arbitrary limits on your code style is always a bad idea. You've learned that Ruby comes with a built-in way to check for common syntactic and semantic problems that are considered objectively bad, and how to use it. Finally, you've learned that code formatting is ultimately one of the least important aspects of your programming, and is it much more important to focus on the understandability of your code. With all you've learned, you are now better able to make decisions regarding code formatting for your libraries and applications.

We'll now move to Section 2 of the book, which focuses on higher-level...