Book Image

Comprehensive Ruby Programming

By : Jordan Hudgens
Book Image

Comprehensive Ruby Programming

By: Jordan Hudgens

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)

Nested if...else conditionals

In this section, we are going to extend our knowledge of conditionals by learning about the if...elsif mechanism. This tool allows us to set up multiple conditional scenarios for our programs to manage data flow. Ruby has a slightly odd syntax on this functionality, so let's walk through it one step at a time.

The if...elsif conditional code example

To review, I'm going to start off with a regular if statement:

x = 10 
y = 100
z = 10

if x == y
puts "x is equal to y"
end

If you run this program, nothing will print out since x is not equal to y. This is what you already know. Now, I'm going to add some additional scenarios:

if x == y 
puts "x is equal to y"...