<label for="property_type">Property Type:</label>
<input [(ngModel)]="newlisting.property_type" name="property_type"
    class="form-control" value={{oldlisting.property_type}}>

export class ListingEditComponent implements OnInit {
  constructor(    private _demoService: DemoService
    ) {}
  ngOnInit(): void {
    this.getListing(this.mode);

  }

  getListing() {
    console.log("In listing_details - getListing");
    this._demoService.getListing(url).subscribe(
      data => { this.oldlisting = data},
      err => console.error(err),
      () => console.log('done loading details')
      );
  }
  editListing(){
    console.log("my new listing.name = "+this.newlisting.name);

  }


}