Railsの教科書のサンプルコード

• https://tatsu-zine.com/books/rails-textbook
• https://github.com/igaiga/rails_textbook

RubyとRailsのバージョン

master, rails7043_ruby322 tag

• https://github.com/igaiga/rails_textbook_sample/releases/tag/rails7043_ruby322
• Ruby 3.2.2
• Rails 7.0.4.3

rails701_ruby310 tag

• https://github.com/igaiga/rails_textbook_sample/releases/tag/rails701_ruby310
• Ruby 3.1.0
• Rails 7.0.1

rails6021_ruby270 tag

• https://github.com/igaiga/rails_textbook_sample/releases/tag/rails6021_ruby270
• Ruby 2.7.0
• Rails 6.0.2.1