jQuery-Rails or jRails?

Question

I'm having trouble understanding the difference between the jquery-rails ruby gem & jRails. I think they both cover ways of adding jQuery, but are installed in different ways? If so, which is the better way to go?

Or am I just off-base?

Answer 1

jRails is a replacement for Prototype using RJS. For instance, you can use methods like form_remote_for, which create an AJAX form. In Rails 3.x the preferred method is to use UJS with :remote => true instead.

jquery-ujs is a replacement for Prototype using UJS. UJS is the preferred method of using jQuery in Rails 3.x.

More info: jQuery with Rails 3