Code snippets as I work through Chris Pine's Lear to Program, 2nd edition

Chapter 02 - Numbers

• Introduction to Simple Arithmetics

• Integers and Floats

Chapter 05 - Mixing It Up

• Introduction to Casting / Conversions

• User Input with gets and chomp

Chapter 06 - More About Methods

• Introduction to String Methods

• The Modulo Operator

• Random Numbers and the rand Function

• Introduction to Modules

Chapter 07 - Flow Control

• Branching, Looping, and Logic

Chapter 08 - Arrays and Iterators

• Introduction to Arrays, Array Methods, and Iteration

Chapter 09 - Writing Your Own Methods

• Defining Methods

• Method Parameters

• Variable Scope

• Return Values

Chapter 10 - Recursion

• Introduction to Recursion

• Creating a Sorting Algorithm

• Re-implementing Sort to be Case Insensitive

Chapter 11 - Saving and Loading

• Introduction to YAML

• String Interpolation

• Ruby IO Features

Chapter 12 - New Classes of Objects

• Introduction to the Time Class

• Introduction to Hashes

• Introduction to Ranges

Chapter 13 - Creating New Classes, Changing Existing Ones

• Creating a New Class

• Instance Variables vs. Class Variables

• The Initialization Process in Ruby

• Adding a Method to an Existing Class

Chapter 14 - Blocks and Procs

• Introduction to Blocks

• Introduction to Procs

• Methods that Take Blocks