Routes offers you the ability to use _path or _url as a way to make
links/redirect/etc throughout your site. However, I'm just wondering
when you should use _path and when you should use _url. Is there a
preference to which one to use? They seem to be fairly interchangeable
(in my very simple app there's no difference which one I use), but
there have to be nuances of when to use which one, otherwise there
wouldn't be both options.
This isn't a very important question, so answer at your own leisure.