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)

How to develop a wheel of fortune game

This is going to be a fun lesson since we are going to build a Wheel of Fortune guessing game using regular expressions and several other Ruby methods.

To start out, let's create a variable called:

starting_sentence = "Hi from matching land" 

This variable is the sentence that the user is going to have to guess while playing the Wheel of Fortune game.

The next step is to convert the sentence into an array of letters and convert them all into lowercase letters. The code for this is:

sentence_array = starting_sentence.split("").map(&:downcase) 

Next, we have to get the count of letters in the array minus the empty spaces; to do this, add the following code:

accurate_count = sentence_array - [" "] 

This value will be useful to loop through sentence_array later.

Then, we put our regular expression through...