Here’s my HTML form:

<select [(ngModel)]="bill.payMode">
  <option value="credit" *ngIf="pay._id">Credit</option>
  <option value="cash">Cash</option>
  <option value="card">Card</option>
</select>

Here’s my TS file:

ngOnInit(): void {
    this.patient.paymentMode = 'cash';
}

I want to put an if-else condition in the TS file wherein, if pay._id is fulfilled, the default option shown is credit and not cash.

Note that credit is hidden if pay._id is not fulfilled.

How can I go about this?