Ruby

Useful

• Iterate over lines of stdin: ruby -nle 'print $_' (or use a=$_.split to get the words of the line)

• Enterprise Rails

• Rails UUID

Rails authentication

• Rails JWT - web token authentication

• Simple Auth Token for Devise

• Devise_auth_token

Rails console

• Execute SQL from the rails console

  ActiveRecord::Base.connection.execute("TRUNCATE table_name")

• Test path helpers, routes

  routes = Rails.application.routes.url_helpers routes.payments_url(10)

Assets

• Replacing Sprockets with Webpack