import { Component , OnInit , ChangeDetectionStrategy } from '@angular/core' ; @ Component ( { selector : 'app-article-list' , templateUrl : './article-list.component.html' , styleUrls : [ './article-list.component.scss' ] , changeDetection : ChangeDetectionStrategy . OnPush } ) export class ArticleListComponent implements OnInit { constructor ( ) { } ngOnInit ( ) { } }