Ruby Essential Training Part 2: Classes and Modules

Course details

Once you understand the basics of Ruby, you can start creating custom classes and modules. These programming constructs make it easier to organize and maintain code and extend your applications with new features. In Ruby Essential Training 2, instructor Kevin Skoglund teaches the fundamentals of object-oriented programming with classes and modules. Learn how to define classes, the templates for creating object instances with their own unique behaviors and attributes. Discover how to use inheritance to share attributes and methods between a superclass and subclasses—and to extend or override them when necessary. Find out how to use modules as namespaces to prevent conflicts with other code, or as mixins to share functionality between classes. Kevin gives you step-by-step demonstrations, complete with examples and challenges that allow you to practice your new Ruby skills along the way.

Learning objectives
Defining a custom class
Working with instances of a class
Class and instance attributes and methods
Class inheritance
Working with dates and times
Using modules as namespaces and mixins
Raising and handling exceptions

Concepts

0. Introduction

01 - Learn to use custom classes in Ruby
02 - What you need to know
03 - Get the most out of the exercise files

1. Classes

04 - Define a class
05 - Instances
06 - Attributes
07 - Reader and writer methods
08 - Attribute methods
09 - Method access control
10 - Initialize method
11 - Challenge - Dice
12 - Solution - Dice

2. Class Attributes and Methods

13 - Class methods
14 - Class attributes
15 - Class reader and writer methods
16 - Challenge - Radio
17 - Solution - Radio

3. Inheritance

18 - Class inheritance
19 - Override and extend
20 - Access the superclass
21 - Challenge - Secure radio
22 - Solution - Secure radio

4. Dates and Times

23 - Time
24 - Date
25 - DateTime
26 - Challenge - Birthdate analysis
27 - Solution - Birthdate analysis

5. Modules

28 - Namespacing
29 - Mixins
30 - Load, require, and include
31 - Challenge - To-do list
32 - Solution - To-do list

6. Exceptions

33 - Handle exceptions
34 - Handle specific exceptions
35 - Exception methods
36 - Raise exceptions
37 - Custom exceptions
38 - Challenge - Custom exceptions

Conclusion

39 - Next steps