docs/
└── tutorials/
└── ruby/
├── index.mdx
├── 01-introduction/
│ ├── what-is-ruby.mdx
│ ├── why-learn-ruby.mdx
│ ├── ruby-features.mdx
│ ├── ruby-vs-python.mdx
│ ├── ruby-vs-javascript.mdx
│ └── ruby-use-cases.mdx
├── 02-installation-and-setup/
│ ├── install-ruby.mdx
│ ├── ruby-version-managers.mdx
│ ├── install-on-windows.mdx
│ ├── install-on-linux.mdx
│ ├── install-on-macos.mdx
│ ├── irb-and-interactive-ruby.mdx
│ └── first-ruby-program.mdx
├── 03-ruby-fundamentals/
│ ├── ruby-syntax.mdx
│ ├── variables-and-constants.mdx
│ ├── data-types.mdx
│ ├── numbers-and-arithmetic.mdx
│ ├── strings.mdx
│ ├── symbols.mdx
│ ├── booleans-and-nil.mdx
│ ├── type-conversion.mdx
│ └── comments-and-documentation.mdx
├── 04-control-flow/
│ ├── conditional-statements.mdx
│ ├── if-unless.mdx
│ ├── case-expressions.mdx
│ ├── while-and-until-loops.mdx
│ ├── for-loops.mdx
│ ├── iterators-and-each.mdx
│ ├── break-next-and-redo.mdx
│ └── truthiness.mdx
├── 05-methods-and-blocks/
│ ├── defining-methods.mdx
│ ├── arguments-and-return-values.mdx
│ ├── keyword-arguments.mdx
│ ├── default-arguments.mdx
│ ├── blocks.mdx
│ ├── procs-and-lambdas.mdx
│ ├── yield-and-block-given.mdx
│ └── method-lookup.mdx
├── 06-arrays-and-hashes/
│ ├── arrays.mdx
│ ├── array-methods.mdx
│ ├── hashes.mdx
│ ├── hash-methods.mdx
│ ├── ranges.mdx
│ ├── enumerable-module.mdx
│ ├── map-select-and-reject.mdx
│ └── collection-performance.mdx
├── 07-strings-and-regular-expressions/
│ ├── string-interpolation.mdx
│ ├── string-manipulation.mdx
│ ├── multiline-strings.mdx
│ ├── regular-expressions.mdx
│ ├── pattern-matching.mdx
│ └── text-processing.mdx
├── 08-object-oriented-programming/
│ ├── classes-and-objects.mdx
│ ├── initialize-and-constructors.mdx
│ ├── instance-variables.mdx
│ ├── class-variables-and-methods.mdx
│ ├── attr-accessors.mdx
│ ├── inheritance.mdx
│ ├── method-overriding.mdx
│ ├── modules-and-mixins.mdx
│ ├── visibility-modifiers.mdx
│ ├── singleton-methods.mdx
│ └── composition-and-design.mdx
├── 09-advanced-ruby/
│ ├── closures-and-binding.mdx
│ ├── metaprogramming-introduction.mdx
│ ├── method-missing.mdx
│ ├── define-method.mdx
│ ├── refinements.mdx
│ ├── reflection-and-introspection.mdx
│ ├── enumerators.mdx
│ ├── refinements-and-scope.mdx
│ └── ruby-performance-basics.mdx
├── 10-modules-and-gems/
│ ├── modules-and-namespaces.mdx
│ ├── require-and-load.mdx
│ ├── ruby-standard-library.mdx
│ ├── ruby-gems.mdx
│ ├── gemfile-and-bundler.mdx
│ ├── dependency-management.mdx
│ ├── create-a-ruby-gem.mdx
│ └── publish-a-ruby-gem.mdx
├── 11-files-and-data/
│ ├── file-reading-and-writing.mdx
│ ├── paths-and-directories.mdx
│ ├── csv-processing.mdx
│ ├── json-processing.mdx
│ ├── yaml-and-configuration.mdx
│ ├── environment-variables.mdx
│ ├── command-line-arguments.mdx
│ └── serialization.mdx
├── 12-errors-and-debugging/
│ ├── exceptions-overview.mdx
│ ├── begin-rescue-ensure.mdx
│ ├── raising-custom-errors.mdx
│ ├── error-handling-patterns.mdx
│ ├── debugging-with-pry.mdx
│ ├── ruby-debugger.mdx
│ └── logging.mdx
├── 13-testing-and-code-quality/
│ ├── testing-fundamentals.mdx
│ ├── minitest.mdx
│ ├── rspec.mdx
│ ├── mocks-and-stubs.mdx
│ ├── test-driven-development.mdx
│ ├── rubocop.mdx
│ ├── code-coverage.mdx
│ └── continuous-integration.mdx
├── 14-concurrency-and-performance/
│ ├── threads.mdx
│ ├── mutexes-and-synchronization.mdx
│ ├── fibers.mdx
│ ├── ractors.mdx
│ ├── processes-and-subprocesses.mdx
│ ├── asynchronous-ruby-overview.mdx
│ └── profiling-and-benchmarking.mdx
├── 15-web-development/
│ ├── ruby-web-development-overview.mdx
│ ├── rack-introduction.mdx
│ ├── sinatra-introduction.mdx
│ ├── http-and-rest-apis.mdx
│ ├── routing-and-controllers.mdx
│ ├── database-integration.mdx
│ ├── authentication-basics.mdx
│ ├── sessions-and-cookies.mdx
│ └── web-security-fundamentals.mdx
├── 16-ruby-on-rails/
│ ├── rails-introduction.mdx
│ ├── create-a-rails-project.mdx
│ ├── mvc-architecture.mdx
│ ├── routes-and-controllers.mdx
│ ├── views-and-templates.mdx
│ ├── active-record-basics.mdx
│ ├── database-migrations.mdx
│ ├── validations-and-callbacks.mdx
│ ├── forms-and-strong-parameters.mdx
│ ├── authentication-and-authorization.mdx
│ ├── rails-api-development.mdx
│ ├── rails-testing.mdx
│ ├── caching-and-performance.mdx
│ └── deployment.mdx
├── 17-automation-and-scripting/
│ ├── command-line-scripts.mdx
│ ├── automate-file-tasks.mdx
│ ├── batch-processing.mdx
│ ├── http-requests.mdx
│ ├── api-automation.mdx
│ ├── scheduled-tasks.mdx
│ ├── web-scraping-ethics.mdx
│ └── scripting-best-practices.mdx
├── 18-security-and-best-practices/
│ ├── input-validation.mdx
│ ├── secrets-and-credentials.mdx
│ ├── sql-injection-prevention.mdx
│ ├── cross-site-scripting.mdx
│ ├── dependency-security.mdx
│ ├── secure-file-handling.mdx
│ └── production-readiness.mdx
├── 19-projects/
│ ├── command-line-calculator.mdx
│ ├── number-guessing-game.mdx
│ ├── contact-manager.mdx
│ ├── expense-tracker.mdx
│ ├── file-organizer.mdx
│ ├── api-client.mdx
│ ├── task-management-api.mdx
│ ├── rails-blog.mdx
│ └── capstone-project.mdx
├── reference/
│ ├── ruby-cheatsheet.mdx
│ ├── syntax-reference.mdx
│ ├── array-and-hash-reference.mdx
│ ├── enumerable-reference.mdx
│ ├── common-errors.mdx
│ ├── gem-and-bundler-commands.mdx
│ ├── rails-command-reference.mdx
│ ├── glossary.mdx
│ └── official-resources.mdx
└── assets/
├── images/
├── diagrams/
└── examples/