Complete Guide to Ruby

Introduction

• Learn Ruby
• Using GitHub Codespaces

1. Get Started with Ruby

• Introducing Ruby
• Install Ruby
• Using Ruby
• Interactive Ruby Shell (IRB)

2. 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

3. Control Structures

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

4. Ruby Scripting

• Identifying Ruby code
• Exit a running script
• Input and output
• Challenge: Guessing game
• Solution: Guessing game

5. Dates and Times

• Time
• Date
• Challenge: Birthdate analysis
• Solution: Birthdate analysis

6. Enumerables and Code Blocks

• Enumerables
• Code blocks
• Find methods
• Map methods
• Inject methods
• Sort methods
• Merge methods
• Challenge: Ruby blanks
• Solution: Ruby blanks

7. Custom Methods

• Define and call methods
• Variable scope
• Arguments
• Argument default values
• Using a hash of options
• Return value
• Return multiple values
• Output vs. return values
• Challenge: Pig Latin
• Solution: Pig Latin

8. Classes

• Define a class
• Instances
• Attributes
• Reader/writer methods
• Attribute methods
• Method access control
• Initialize method
• Challenge: Dice
• Solution: Dice

9. Class Attributes and Methods

• Class methods
• Class attributes
• Class reader and writer methods
• Challenge: Radio
• Solution: Radio

10. Inheritance

• Class inheritance
• Override and extend
• Access the superclass
• Challenge: Dungeon dice
• Solution: Dungeon dice

11. Modules

• Namespacing
• Mixins
• Load, require, and include
• Challenge: To-do list
• Solution: To-do list

12. Exceptions

• Handle exceptions
• Handle specific exceptions
• Exception methods
• Raise exceptions
• Custom exceptions

13. The File System

• Input/output basics
• File system basics
• Types of file paths
• File permissions

14. Work with Files

• Access files
• Write to files
• Read from files
• File pointer
• Read or write an entire file
• Rename, delete, copy
• Examine file details
• Challenge: List maker
• Solution: List maker

15. Work with Directories

• Create directories
• Change directories
• Entries
• Glob
• Challenge: Treasure hunt
• Solution: Treasure hunt

16. Common Data Formats

• CSV
• YAML
• JSON
• XML

17. ERB Templating

• Embed Ruby
• Binding
• Template files
• Challenge: Mail merge
• Solution: Mail merge

18. Final Project

• Restaurant finder
• Project organization
• User input
• File storage
• List action
• Output
• Sort the list
• Find action
• Add action
• Completing the project

Conclusion

• Next steps