Ruby × GitHub Tutorial — Part 3: Arrays & Iteration

Cover arrays, loops, and iteration.

Quick Start

ruby -v
gem install bundler
bundle install
ruby bin/hello Alice
bundle exec rspec
bundle exec rubocop

Repo Tour

• bin/hello — CLI entry point
• lib/tutorial/greeter.rb — core code
• spec/greeter_spec.rb — RSpec tests
• Gemfile — dependencies
• Rakefile — tasks
• .github/workflows/ci.yml — CI workflow

CI

Each push runs RSpec & RuboCop.

License

MIT