export class ParentComponent implements AfterViewInit {  

  @ViewChild(ChildComponent) child;  

  constructor() { }  

  productInParent=[];  

  ngAfterViewInit() {  

    this.productInParent = this.child.productInChild;  

  }  

}  

​

--child.ts

productInChild = [];

​

--Second Method

------------------------------------------------------------

--Child

@Output() onDatePicked = new EventEmitter<any>();

​

--Child

public pickDate(date: any): void {

    this.onDatePicked.emit(date);

}

​

--Parent

<div>

    <calendar (onDatePicked)="doSomething($event)"></calendar>

</div>

​

--Parent

public doSomething(date: any):void {

    console.log('Picked date: ', date);

}