How to generate javascript using the Slim templating engine?

Question

JavaScript

Hello!
I'm starting to learn Rails, in a test project I use the Slim template engine.
It is required to generate the template cart.js.slim Tell me
how to generate the correct template?

If you just prescribe jquery then the template does not work.
I tried to start lines with a pair of "| " - this combination works, but if there are 2 lines in the file, then again an error.

Answer 1

I scored on js, renamed it to html.slim, I write each new line with a pair of "| "
Everything works as it should

Answer 2

Why be so perverted? Rename to js.erb and write without "|".