msdosx86

this.postService.getPostByName(name)
  .pipe(
    switchMap(post => this.postService.getTagsByPostId(post.id)
      .pipe(
        tap(tags => post.tags = tags),
        mapTo(post),
        filter(() => post.hasComments),
        switchMap(() => this.postService.getCommentsByPostId(post.id)),
        tap(comments => post.comments = comments),
        mapTo(post),
      )
    ),
  )

const filtered = impotyList.filter(item => {
    for (const removeItem of removeFromImportList) {
       if (JSON.stringify(removeItem) === JSON.stringify(item)) return false;
    }
   return true;
  })

<app-component *ngIf="show"></app-component>

public show: boolean;
this.doRequest().subscribe(() => this.show = true));

function capitilize(str = '') {
  const words = str.split(' ');
  const capitilized = words.map(word => {
    const letters = word.split('');
    letters[0] = letters[0].toUpperCase();
    return letters.join('');
  });
  return capitilized.join(' ');
}

const necessarySpan = document.querySelector('div.your-class > span');
  document.removeChild(necessarySpan);

<div *ngFor="let item of items"> {{ item }} </div>
  <button (click)="addItem()">Add</button>

items = [1, 2, 3, 4];
  addItem(): void {
    this.items.push(5);
  }

@Input()
public value: string;

@Output()
public valueChange: EventEmitter<string>;

a.profile = [1,2,3] as any;
a.contact = 159 as any;

{
  path: '**',
  component: NotFoundComponent,
}