Angular2 : two way binding inside parent/child component

For 2-way binding use @Input() and @Output(). The names should be propName and propNameChange to allow the shorthand binding syntax [(propName)]="someModel" otherwise you’d need the longer version [propName]="someModel" (propNameOtherOutputName)="propName=$event;propNameOtherOutputName.emit($event)"

@Component{
  ...
  template: `
<textarea #textarea [(ngModel)]="name" (ngModelChange)="nameChange.emit($event)" ngControl="name" name="name"></textarea>

`})
export class InputTestComponent {
  @Output() nameChange:EventEmitter<String> = new EventEmitter<String>();
  @Input() name:string;
}