Ruby Tutorial Roadmap

Introduction to Ruby

Overview of Ruby

Ruby is a dynamic, object-oriented, and open-source programming language known for its simplicity, readability, and developer productivity. It is widely used for web development, scripting, automation, and backend development (notably with Ruby on Rails).

Ruby Programming Language

History and evolution of Ruby
Philosophy: “Developer happiness”

Comparison with Other Programming Languages

Ruby vs Java
Ruby vs Python
Ruby vs C++

Importance of Ruby

Clean and expressive syntax
Strong object-oriented features
Large ecosystem and community
Ideal for rapid application development

Basic Ruby Example

Writing and understanding a simple Ruby program

Basic Concepts in Ruby

Ruby Keywords

Reserved words and their usage

Ruby Data Types

Numbers
Strings
Symbols
Arrays
Hashes
Booleans

Types of Variables in Ruby

Local variables
Instance variables
Class variables
Global variables

Global Variables

Usage and scope of global variables

Literals

Numeric literals
String literals
Symbol literals

Ruby Directories

Understanding Ruby file and directory structure

Control Statements in Ruby

Decision-Making Statements

if statement
if-else statement
if-else-if
Ternary operator

Loops in Ruby

for loop
while loop
do..while loop
until loop

Case Statement

Using case for conditional logic

Control Flow Alteration

break and next statements
redo and retry statements

File Handling in Ruby

File Operations

Creating files
Reading files
Writing to files
Closing files

Methods in Ruby

Ruby Methods

Defining and calling methods

Method Visibility

Public
Private
Protected

Recursion in Ruby

Recursive method calls

Ruby Hook Methods

Lifecycle hook methods

Ruby Range Class Methods

Working with ranges and their methods

Object-Oriented Programming (OOP) in Ruby

OOP Concepts

Principles of object-oriented programming

Classes and Objects

Creating classes and objects

Private Classes

Access control in Ruby classes

Freezing Objects

Preventing object modification using freeze

Inheritance in Ruby

Parent and child classes

Polymorphism

Method overriding and dynamic behavior

Encapsulation

Data hiding using access control

Mixins

Using modules as mixins

Instance Variables

Defining and accessing instance variables

Data Abstraction

Hiding implementation details

Exception Handling in Ruby

Ruby Exceptions

Types of exceptions

Exception Handling

begin, rescue, ensure

Catch and Throw

Non-local exits using catch and throw

Exception Handling in Threads

Managing errors in multithreaded programs

Exception Class

Exception class hierarchy and methods

Regular Expressions in Ruby

Ruby Regex

Pattern matching basics

Search and Replace

Using regex for search and replace operations

Ruby Built-in Classes

Float Class

Floating-point operations

Integer Class

Integer operations

Symbol Class

Symbols and their use cases

Struct Class

Lightweight data structures

Ruby Modules

Ruby Module Basics

Creating and using modules

Comparable Module

Object comparison

Math Module

Mathematical functions

Include vs Extend

Differences and use cases

Collections in Ruby

Arrays

Creating and manipulating arrays

Strings

String basics
String interpolation

Hashes

Hash basics
Working with key-value pairs

Multithreading in Ruby

Introduction to Threading

Basics of multithreading

Thread Lifecycle

Thread states and execution flow

Miscellaneous Topics

Iterators in Ruby

Types of iterators

Getters and Setters

Attribute readers and writers