[O] JavaScript and babel

[Alan Schmitt]

Hello,

I'm writing a presentation about JavaScript and I was trying to get some code 
to run. Unfortunately whatever I try, I get "undefined" as the results, as in 
the following:

#+begin_src js
1;
#+end_src

#+RESULTS:
: undefined

Could someone give an example of the syntax to use?

Thanks a lot,

Alan