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)

The working of polymorphism and usage of super

In this guide, we are going to discuss another important concept in OOP called polymorphism. Polymorphism occurs when a class that inherits from a parent class overrides the behavior provided by the parent class.

To see a basic example, we'll continue working with our ApiConnector class:

class ApiConnector
def initialize(title:, description:, url: 'google.com')
@title = title
@description = description
@url = url
end

def api_logger
puts "API Connector starting..."
end
end

I've added a new method to our class called api_logger.

Next, I'll create a class called PhoneConnector that inherits from our ApiConnector class. After we instantiate the class, it can call the api_logger method that we created in the parent class:

class PhoneConnector < ApiConnector
end

phone = PhoneConnector...