FormControl String Value

[elvispdosreis]

Is it possible that I only receive a simple element in my formcontrol, I tested the add [onAdding] but I keep getting an object, I would like to receive only a string

 "emails": [
    "[email protected]",
    {
      "display": "[email protected]",
      "value": "[email protected]"
    },
    {
      "display": "[email protected]",
      "value": "[email protected]"
    }
  ]

public transform(value: any): Observable<string> {
        return of(value.value);
 }

[Gbuomprisco]

Adding [modelAsString] should solve that. Check out the docs