Ruby Tutorials

Ruby Tutorials Roadmap

Section 1: Introduction to Programming and Ruby Basics

  • What is Programming?
    • Understanding the concept of writing instructions for computers.
    • Different programming paradigms (brief overview).
  • What is Ruby?
    • A dynamic, open-source programming language.
    • Focus on simplicity and productivity.
    • "Programmer's best friend."
    • Created by Yukihiro "Matz" Matsumoto.
  • Why Learn Ruby?
    • Easy to learn syntax.
    • Great for beginners.
    • Widely used in web development (Ruby on Rails).
    • Strong community.
    • Focus on developer happiness.
  • Setting up Your Development Environment:
    • Installing Ruby (using RVM, rbenv, or directly).
    • Using a code editor (VS Code, Sublime Text, Atom, RubyMine).
    • Using the Ruby interactive shell (IRB).
  • Your First Ruby Program ("Hello, World!"):
    • Writing and running a simple Ruby script.
  • Basic Syntax:
    • Comments.
    • Variables and data types (Numbers, Strings, Booleans).
    • Printing output (puts, print).
    • Getting input from the user (gets).

Section 2: Data Types, Operators, and Expressions

  • Numbers:
    • Integers, Floats.
    • Arithmetic operators (+, -, *, /, %).
    • Order of operations.
  • Strings:
    • Creating strings (single and double quotes).
    • String concatenation and interpolation.
    • String methods (length, upcase, downcase, capitalize, etc.).
    • Escape sequences.
  • Booleans:
    • true and false.
  • Nil:
    • Understanding the concept of "nothing."
  • Operators:
    • Assignment operators (=, +=, -=, *=, /=, %=).
    • Comparison operators (==, !=, >, <, >=, <=).
    • Logical operators (&&, ||, !).

Section 3: Control Flow

  • Conditional Statements:
    • if, elsif, else.
    • unless.
    • Ternary operator.
  • Loops:
    • while loop.
    • until loop.
    • for loop.
    • Iterators (each, times, upto, downto).
    • break and next.
  • Case Statements:
    • Handling multiple conditions.

Section 4: Data Structures

  • Arrays:
    • Creating arrays.
    • Accessing elements by index.
    • Array methods (push, pop, shift, unshift, length, etc.).
    • Iterating over arrays.
  • Hashes (Dictionaries/Associative Arrays):
    • Creating hashes (using symbols as keys).
    • Accessing values by key.
    • Hash methods (keys, values, each, etc.).
  • Ranges.

Section 5: Methods and Blocks

  • Defining Methods:
    • Using the def keyword.
    • Method parameters and arguments.
    • Return values.
    • Default parameter values.
  • Blocks:
    • Understanding the concept of blocks.
    • Using blocks with iterators (e.g., each).
    • Yielding to a block.
  • Procs and Lambdas (More Advanced Block Concepts).

Section 6: Object-Oriented Programming (OOP) in Ruby

  • Introduction to OOP:
    • Objects, Classes, Instances.
    • Encapsulation, Abstraction, Inheritance, Polymorphism (basic concepts).
  • Defining Classes:
    • Using the class keyword.
    • Instance variables (@variable).
    • Instance methods.
    • The initialize method (constructor).
  • Creating Objects (Instances).
  • Accessor Methods (Getters and Setters):
    • Manual accessor methods.
    • attr_reader, attr_writer, attr_accessor.
  • Class Variables (@@variable) and Class Methods.
  • Inheritance:
    • Using the < operator.
    • Overriding methods.
    • Using super.
  • Modules:
    • Using the module keyword.
    • Mixins (including modules).
    • Namespaces.

Section 7: Error Handling and Debugging

  • Understanding Errors and Exceptions.
  • Handling Exceptions:
    • begin, rescue, ensure, else.
  • Raising Exceptions (raise).
  • Debugging Ruby Code:
    • Using puts for simple debugging.
    • Using a debugger (e.g., pry, byebug).

Section 8: Working with Files

  • Reading from Files.
  • Writing to Files.
  • File Modes.
  • Closing Files.

Section 9: Introduction to Gems and the Ruby Ecosystem

  • What are Gems?
    • Libraries and packages for Ruby.
  • Using RubyGems:
    • Installing gems (gem install).
    • Listing installed gems (gem list).
  • Using Bundler:
    • Managing gem dependencies (Gemfile).
    • Installing gems with Bundler (bundle install).
  • Exploring Popular Gems (briefly):
    • HTTP libraries, testing frameworks, etc.

Section 10: Metaprogramming (Optional - More Advanced)

  • Understanding Metaprogramming in Ruby.
  • Basic Metaprogramming Techniques (e.g., define_method).

Section 11: Introduction to Web Development with Ruby on Rails (Optional but Highly Recommended)

  • What is Ruby on Rails?
    • A full-stack web application framework.
    • Follows the Model-View-Controller (MVC) pattern.
    • Convention over Configuration.
  • Why Learn Rails?
    • Rapid development.
    • Large community and extensive documentation.
    • Powers many popular websites.
  • Setting up Rails.
  • Building a Simple Rails Application (Basic CRUD).
  • Understanding MVC in Rails.
  • Working with Databases and Migrations.
  • Routing.
  • Views (ERB templates).
  • Controllers.

Section 12: Testing in Ruby

  • Introduction to Testing.
  • Using Built-in Testing Libraries (Minitest).
  • Introduction to RSpec (a popular testing framework).
  • Writing Unit Tests.

Section 13: Deployment (Basic)

  • Deploying Simple Ruby Applications.
  • Introduction to Deploying Rails Applications (e.g., Heroku, Render).

Section 14: Further Learning and Community

  • Official Ruby Documentation (ruby-lang.org).
  • Ruby Tutorials and Blogs.
  • Online Courses and Specializations (Codecademy, Coursera, edX, Udemy, The Odin Project).
  • Books on Ruby and Rails.
  • Participating in Community Forums (Stack Overflow, Reddit r/ruby, Ruby mailing lists).
  • Attending Conferences and Meetups.
  • Exploring Open-Source Ruby Projects on GitHub.
  • Building More Complex and Real-World Applications.