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This self-study course written as a book is your first step towards making money by coding and programming from home, and having fun doing it. You will understand how the Ruby language works, and establish a foundation for being a successful freelance developer. This course gives you not only technical detail, but presents knowledge in a friendly format, understandable by all ages, providing a thorough explanation of modern concepts for absolute beginners.

In this course you will find 78 easy to follow tasks, so even people without any programming skill can solve them. Beginners will learn how to create, debug, and understand programs in Ruby. Those who are already familiar with the language will rediscover object-oriented concepts, memory organization, find career advice, and save the planet from a nuclear apocalypse.

Ready to dive into one of the most influential and demanding third generation programming languages? Let's tune in!

The Handbook for Ruby Developers

True or false: The “Principle of Least Surprise” is one of the principles of the Ruby language.


True or false: The “Principle of Least Surprise” is one of the principles of the Ruby language.

Which programming language was primarily used to build GitHub, AirBnB, and Shopify?


Which programming language was primarily used to build GitHub, AirBnB, and Shopify?

Ruby is often used for which type of software engineering?


Ruby is often used for which type of software engineering?

What is the recommended operating system for a Ruby developer?

What is the recommended operating system for a Ruby developer?

Because the Ruby interpreter is waiting for our input

Why is there no output when we type `ruby` from the terminal?


Why is there no output when we type <code>ruby</code> from the terminal?

How do we run the default REPL for Ruby?


How do we run the default REPL for Ruby?

How do we run a Ruby program from the terminal?


How do we run a Ruby program from the terminal?

Take a short quiz before moving on to the next chapter.

Before We Begin

First Steps

Fundamentals of Ruby

Conditional Statements

Operators and Methods

Arrays

Hash

Fun with Object Oriented Programming

Debugging in Ruby

Ruby Version Manager

Testing Ruby Programs

Wrap Up!

Appendix

Quiz: First Steps