My current top 5 favorite Ruby gems and why. Presented at Ruby Tuesdays #43 (https://www.meetup.com/ruby-malaysia/events/242979874/)

1. My Top 5 Favorite
Gems
by Jimmy Ngu

2. #1
MailCatcher

3. https://github.com/sj26/mailcatcher

5. Demo

6. #2
Pretender

7. https://github.com/ankane/pretender

8. Demo

9. #3
ActiveRecord Import

10. https://github.com/zdennis/activerecord-import

12. Demo

13. #4
Webpacker

14. https://github.com/rails/webpacker

16. Before webpacker
• browserify-rails + react-rails / react_on_rails
• hot reload is a pain to setup
• // imports in multiple asset bundles
• not utilizing webpack
After webpacker
• zero configuration

17. Demo

18. #5
Capybara

19. https://github.com/teamcapybara/capybara

20. • Most popular test framework
• Easily configurable & extendable
• Tonnes of add ons (e.g. capybara + poltergeist / webkit /
headless chrome)

21. But did you know?
• Web Automation (alternative to Mechanize)
• Supports JS with headless browser add on (e.g.
poltergeist)

22. Demo

23. https://github.com/jimmynguyc/sc2replaystats-uploader

24. Honorable Mentions
• Bundler
• Cancancan / Pundit
• pry-byebug
• Carrierwave / Paperclip
• Sidekiq
• apipie-rails / grape-
swagger-rails
• Devise
• ActiveRecord
• Capistrano
• Rspec / FactoryGirl /
SimpleCov
• Rubocop

25. So what’s your favorite gems?

26. Thanks !!