Ruby Essential Training Part 1: The Basics

Course details

Ruby, the popular object-oriented open-source programming language, is a great place to start learning programming or web development. You can use it to write interactive programs or build scripts to speed up common tasks. In this course, instructor Kevin Skoglund provides the basics that new and experienced developers need to know to start coding with Ruby, starting with the core object types: numbers, strings, symbols, booleans, and more. He demonstrates Ruby's control structures, including conditionals, loops, and iterators. Kevin explains scripting best practices and shows the power of using enumerables and code blocks. By the end of the course, you should be able to use Ruby to define your own custom methods with loops and conditional logic.

Concepts

Introduction

Learn the basics of Ruby
Get the most out of the exercise files

Get Started with Ruby

Introducing Ruby
Install Ruby on a Mac
Install Ruby on Windows
Using Ruby
Interactive Ruby Shell (IRB)
Documentation

Ruby Object Types

Objects
Variables
Numbers - Integers
Numbers - Floats
Strings
Strings - Escaping and interpolation
Arrays
Array methods
Hashes
Symbols
Booleans
Ranges
Constants
Nil
Challenge - Roman numerals
Solution - Roman numerals

Control Structures

About control structures
Conditionals - if, else, elsif
Conditionals - unless
Conditionals - case
Conditionals - Shorthand operators
Loops
Iterators
Challenge - Blanket patterns
Solution - Blanket patterns

Ruby Scripting

Best practices
Exit a running script
Input and output
Challenge - Guessing game
Solution - Guessing game

Enumerables and Code Blocks

Enumerables
What is a code block
Find methods
Map methods
Inject methods
Sort methods
Merge methods
Challenge - Ruby blanks
Solution - Ruby blanks

Custom Methods

Define and call methods
Variable scope
Arguments
Argument default values
Return value
Return multiple values
Challenge - Pig Latin
Solution - Pig Latin

Conclusion

Next steps