No, I am interested in gathering all of the optional, named Keyword Parameters into a hash. I am not trying to create a new options hash. I want a hash of {:name => val, :color => val, etc.}, which are named in the method signature.

that's right, we don't want to do params = { ... } because then we're hardcoding the implementation and it becomes very coupled. The benefit of doing it like in my examples is that you can change the method signature and still automatically capture all keyword parameters.

The Ruby on Rails framework provides a builtin server tool, which you can access with the rails server command. The "rails server" is not an application server by itself, but just a small wrapper that launches your application in an application server. This is why people do not use "rails server" in production. They use an application server – such as Passenger – directly. "rails server" uses Puma by default as of Rails 5.

passive: true instructs chrome that no body will call e.preventDefault() so chrome can optimized scrolling just because no body will call e.preventDefault and so there is no need to wait listeners...