Angular strongly typed reactive forms

Question

I\'m looking to refactor a large set of components in my Angular project to have strongly typed FormGroups, FormArrays, and FormControls.

I\'m just looking for a good wa

Answer 1

I had a similar issue and this was my solution. I really only cared about the type of the 'value' of the form not the form itself. It ended up looking something like this.

export interface UserFormValue {
  first_name: string
  last_name: string
  referral: string
  email: string
  password: string
}
...

ngOnInit() {
  this.userForm = this.fb.group({
    first_name: [ '', Validators.required ],
    last_name: [ '', Validators.required ],
    referral: [ '' ],
    email: [ '', [ Validators.required, Validators.email ] ],
    password: [ '', [ Validators.required, Validators.minLength(8) ] ],
  });
}

...

Then in the template submit the value

   ...

Now you can add a type to the submit function

onSubmit(userForm: UserFormValue) {
   ...
}

It's not perfect but has been good enough for my use cases. I really wish there was like this.

userForm: FormGroup