Can’t request function from the file

Can’t request function from the file

Hello, I have js file with some functional with declared like

  1. (function($){
  2.         function f1() {
  3.         });
  4. })(jQuery);

is it possible to requests functions f1() out of this file? I can't the change file, the full version of script you can see in attachment (I need find way to use funct. addRow).

I tried to request function like jQuery.f1(), but I have message that f1 is not the functions. What I'm doing wrong?

Thanks!