link26.ts

//src/app/app.component.ts
  article: Observable<Article[]>
  constructor(private store: Store<fromArticle.State>){

    this.article = this.store.select(fromArticle.getArticles).subscribe((v: Array<Article>) => {
      this.article = v.sort((a: Article, b: Article) => {
        return b.points - a.points
      })
    })
}