Mastering Ruby

Introduction
1.Getting Started with Ruby
1.1.What is Ruby?
1.2.Installing Ruby
1.3.Hello World in Ruby
1.4.Variables and Data Types
1.5.Operators
1.6.Control Structures
1.7.Functions and Methods
1.8.Arrays and Hashes

2.Object-Oriented Programming in Ruby
2.1.Introduction to OOP
2.2.Classes and Objects
2.3.Instance Variables and Methods
2.4.Class Variables and Methods
2.5.Inheritance and Modules
2.6.Polymorphism and Duck Typing
2.7.Encapsulation and Access Control

3.Advanced Ruby Concepts
3.1.Exception Handling
3.2.Regular Expressions
3.3.Working with Files
3.4.Metaprogramming
3.5.Reflection and Introspection
3.6.Blocks, Procs, and Lambdas
3.7.Closures and Binding

4.Ruby Core Libraries
4.1.Working with Strings
4.2.Collections and Enumerables
4.3.File and Directory Manipulation
4.4.Date and Time
4.5.Networking and Web APIs
4.6.Working with JSON and XML
4.7.Multithreading and Concurrency

5.Web Development with Ruby
5.1.Overview of Web Development
5.2.Building Web Applications with Sinatra
5.3.Ruby on Rails Framework
5.4.Model-View-Controller (MVC) Architecture
5.5.Active Record and Database Interaction
5.6.Building RESTful APIs
5.7.Authentication and Authorization

6.Testing and Debugging in Ruby
6.1.Introduction to Testing
6.2.Unit Testing with MiniTest
6.3.Behavior-Driven Development (BDD) with RSpec
6.4.Test-Driven Development (TDD) Best Practices
6.5.Debugging Techniques and Tools
6.6.Performance Profiling

7.Deploying and Scaling Ruby Applications
7.1.Deployment Strategies
7.2.Configuring Application Servers
7.3.Database Scaling and Replication
7.4.Caching and Load Balancing
7.5.Monitoring and Error Tracking

8.Optimizing Ruby Performance
8.1.Understanding Ruby's Performance Characteristics
8.2.Memory Management and Garbage Collection
8.3.Optimizing Code and Algorithms
8.4.Profiling and Benchmarking
8.5.JIT Compilation and Ruby 3.0

9.Ruby Best Practices
9.1.Writing Clean and Readable Code
9.2.Design Patterns in Ruby
9.3.Code Organization and Project Structure
9.4.Documentation and Commenting
9.5.Version Control and Collaboration
9.6.Security Best Practices

10.Beyond Ruby - Integrations and Ecosystem
10.1.Interfacing with Other Languages
10.2.Using Gems and Libraries
10.3.Integrating with Databases and Data Stores
10.4.Building Command-Line Applications
10.5.Integrating with Cloud Services

11.Appendix
11.1.Ruby Syntax Cheat Sheet
11.2.Glossary of Terms
11.3.Recommended Resources
11.4.About the author