I’m currently learning Ruby. (You can see what I’m doing at https://github.com/jhsu802701/bargainstockfunds-scrape .) I already have experience with HTML, Drupal, and object-oriented programming in Python.
What else should I learn before boning up on Rails? Should I learn JavaScript as well?
That seems an odd question since you have been asking questions about Rails here for nearly 18 months. If you have been following the list you will have seen similar questions answered several times.
To develop any non-trivial web application requires knowledge of javascript. In depth knowledge is not a requirement to get started in Rails, but you will need it eventually.
Colin