Q:

FORM_DIRECTIVES

here we can read that we need FORM_DIRECTIVES to work with ngForm or ngSubmit but for me it is working the same without the FORM_DIRECTIVES include.
Can someone tell me why?

A:

In Angular2 final 
@NgModule({
  // only one of these is requured if only one is used
  imports: [FormsModule, ReactiveFormsModule],
  ...
 }) 

is required. FORM_DIRECTIVES don't exist anymore.

