Angular 6 Date format MM/dd/yyyy in reactive form

Had that same problem when using datepicker. The solution was simple: Change the input type to "date"

Before:

<input type="text" class="form-control" placeholder="dd/mm/yyyy"
            formControlName="inputNascimento" ngbDatepicker #d="ngbDatepicker">

After:

<input type="date" class="form-control" placeholder="dd/mm/yyyy"
            formControlName="inputNascimento" ngbDatepicker #d="ngbDatepicker">