After child has been initialised, operation from parent component on child DOM causes ExpressionChangedAfterItHasBeenCheckedError

Question

I\'d like to make some operation from parent component on child component after child component has been initialised.

Parent:

Answer 1

you have use detectionChanges for this:

constructor(private _cd: ChangeDetectorRef){}

ngAfterViewInit() {
      this.childComponent.domMethod('boo');
      this._cd.detectChanges();

  }