Should I use app/javascript without webpacker?

[brenogazzola]

Short answer: You don’t need both. app/assets/javascript is for the sprockets based asset pipeline, and app/javascript is for the webpacker/bundler/import maps based one.

Long answer: Check my other post here:

Guide to Rails 7 and the Asset Pipeline

Intro Rails 7 brought with it an overhaul of the Asset Pipeline in the form of multiple new gems that either introduced a new way of handling assets (importmaps-rails), or broke down existing gems (propshaft, jsbundling-rails, cssbundling-rails) into smaller parts that make use of existing standalone tools and therefore support modern features that were previously unavailable. While a few of these gems are still in pre-release status, their maintainers, contributors and early adopters have alr…