In this chapter, you were introduced to methods in Ruby and what methods return. We also examined the two types of method available in Ruby programs. The difference between the two method types may seem subtle right now; however, the difference between method types reveals itself when working with Ruby on Rails applications. For now, the key takeaway is that there are two options for method types in Ruby. This chapter also walked you through a close cousin to methods: the proc. We also saw what lambdas are and how to encapsulate entire blocks of behavior with lambdas. Additionally, we walked through how to pass arguments to lambdas in order to have data-driven features. We examined the key differences between procs and lambdas. We also looked at the various ways to pass arguments to methods. We analyzed how to implement splat and optional arguments in methods which allow...
Comprehensive Ruby Programming
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Comprehensive Ruby Programming
By:
Overview of this book
Ruby is a powerful, general-purpose programming language that can be applied to any task. Whether you are an experienced developer who wants to learn a new language or you are new to programming, this book is your comprehensive Ruby coding guide. Starting with the foundational principles, such as syntax, and scaling up to advanced topics such as big data analysis, this book will give you all of the tools you need to be a professional Ruby developer. A few of the key topics are: object-oriented programming, built-in Ruby methods, core programming skills, and an introduction to the Ruby on Rails and Sinatra web frameworks. You will also build 10 practical Ruby programs.
Created by an experienced Ruby developer, this book has been written to ensure it focuses on the skills you will need to be a professional Ruby developer. After you have read this book, you will be ready to start building real-world Ruby projects.
Table of Contents (20 chapters)
Preface
Free Chapter
Introduction to the Ruby Programming Language
Ruby Variables
Ruby Strings
Working with Numbers in Ruby
Ruby Methods
Ruby Iterators and Loops
Ruby Collections
Ruby Conditionals
Object-Oriented Programming in Ruby
Working with the Filesystem in Ruby
Error Handling in Ruby
Regular Expressions in Ruby
Searching with grep in Ruby
Ruby Metaprogramming
Ruby Web Frameworks
Working with APIs in Ruby
Ruby Algorithms
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