on Rails, is f.submit in a form_for newer than submit_tag?

Question

some books or even the rails api uses

form_for ...
  ...
  submit_tag ...
end

and i found that the Rails 2.3.2 Scaffold uses

f.submit "Create"

instead... and this is not in the rails api doc. Is this a new addition and is it suppose to replace submit_tag?

Answer 1

I believe that f.submit calls the submit_tag method under the hood.

It's in the context of the form "f".