Beginning Ruby 3: From Beginner to Pro, 4th ed. Edition

Book Description Learn the principles behind object-oriented programming in Ruby and within a few chapters create a fully functional Ruby 3-based application. You'll gain a basic understanding of many ancillary technologies such as databases, XML, web frameworks, and networking - some of which will be needed for your first Ruby application.  Based on the bestselling first and second editions, Beginning Ruby 3, 4th Edition is a leading guide to learn Ruby from the ground up.
The new edition of this book provides the same excellent introduction to Ruby as the previous editions plus updates for the newest version of Ruby, including performance through an improved allocator, decreased heap fragmentation and more.  Also, added: details on the just-in-time compiler, fewer limits on GIL (Global Interpreter Lock), and a static type checker. You’ll see why the light and agile Ruby programming language remains a popular open source scripting option for developers building today's web applications. This book can also be used as a textbook or companion to a textbook on beginning Ruby programming. After reading and using this book, you'll have a firm handle to program in the Ruby language.  

What You Will Learn

• Discover the fundamentals of Ruby and its object-oriented building blocks
• Use the Ruby libraries, gems, and documentation
• Work with files and databases
• Write and deploy Ruby applications
• Harness the various Ruby web frameworks and use them effectively
• Do network programming with Ruby 

Who This Book Is For 
Beginning programmers, programmers new to Ruby, and web developers interested in learning the foundations of the Ruby programming language.

Content

Part I: Foundations and Scaffolding 
Chapter 1: Let’s Get It Started: Installing Ruby
Chapter 2: Programming == Joy: A Whistle-Stop Tour of Ruby and Object Orientation
Chapter 3: Ruby’s Building Blocks: Data, Expressions, and Flow Control
Chapter 4: Developing Your First Ruby Application
Chapter 5: The Ruby Ecosystem

Part II: The Core of Ruby 
Chapter 6: Classes, Objects, and Modules
Chapter 7: Projects and Libraries
Chapter 8: Documentation, Error Handling, Debugging, and Testing
Chapter 9: Files and Databases
Chapter 10: Distributing Ruby Code and Libraries
Chapter 11: Advanced Ruby Features
Chapter 12: Tying It Together: Developing a Larger Ruby Application

Part III: Ruby Online 
Chapter 13: Two Web Application Approaches: Rails and Sinatra
Chapter 14: Ruby and the Internet
Chapter 15: Networking and Sockets
Chapter 16: Useful Ruby Libraries