TypeError: Cannot read property 'valid' of undefined

Question

I have the following textarea:

Answer 1

You could use ngModelChange as a workaround:

And in your component:

 detectChanges(newVal, model, validation): void {
     if (validation.valid) model._valid = true;
     else model._valid = false;
 }

This can give you more flexibility when you are using *ngFor to display lots of input fields and want to validate them individually.