Use updateOn: 'blur' in Angular Reactive Forms

Question

I would like to start the validation of the fields of my forms only when the user leave the field (onblur).

I\'m trying in this way:

Answer 1

Set params as AbstractControlOptions

    firstName: ['initial value',{
         validators: [Validators.required, Validators.minLength(2), forbiddenNameValidator(/bob/i)],
         asyncValidators: [forbiddenNameValidatorAsync()],
         updateOn: 'blur'
    }],

Example here https://stackblitz.com/edit/angular-hdna17?file=src%2Fapp%2Fhello.component.ts