Sasha Novik

getPerson(id: number): Observable<Person> {
  return this.http.get<Person>(`http://test/api/v1/person/${id}`);
}

this.createForm = this.fb.group({
    ...
    contacts: this.fb.group({
        telephones: ['', []],
        emails: ['', []],
        postals: ['', []]
    })
});

<form [formGroup]="createForm">
   <div formGroupName="contacts">
      ...
     <input type="text" name="firstName" placeholder="" formControlName="emails">
     ...

import { interval } from 'rxjs/observable/interval';
...
const intervalObs = interval(100);
...

import { Component } from '@angular/core';
import { interval } from 'rxjs/observable/interval';
import { takeWhile, tap } from 'rxjs/operators';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.css']
})
export class AppComponent {
  title = 'app';

  max = 1;
  current = 0;

  start() {
    const intervalObs = interval(100);

    intervalObs.pipe(
        takeWhile(_ => isFinished),
        tap(i => current += 0.1),
    ).subscribe();
  }

let x = search$
       .distinctUntilChanged()
       .do(() => console.log('search called!'))
       .mergeMap(() => query())
       .shareReplay(1);

::ng-deep .tab-class {
  background: red
}

...
ngOnChanges() {
  this.svg = this.sanitizer.bypassSecurityTrustHtml(this.svgshow);
}

ngOnInit() {
  this.quizService.getData().subscribe((data: Response) => {
    this.quiz = data.json();
    this.countPages = this.quiz.textCategory.length;
  });

const Routes: Routes = [
  {path: 'auto', loadChildren: './auto-module/auto.module#AutoModule'},
  {path: 'avia', loadChildren: './avia-module/avia.module#AviaModule'},
  {path: '', loadChildren: './entry-module/entry.module#EntryModule'},
];

{
    path: '',
    pathMatch: 'full',
    redirectTo: 'entry',
  },
  {
    path: 'entry',
    loadChildren: 'entry-module/entry.module#EntryModule',
  },
  ...
}

private svgElementFromString(str: string): SVGElement {
  const div = document.createElement('div');
  div.innerHTML = str;
  const svg = div.querySelector('svg') as SVGElement;
  return svg;
}

const el = this.el.nativeElement;
el.innerHTML = '';
this.renderer.appendChild(el, svg);

constructor(private sanitizer: DomSanitizer)
  ...
  this.svg = this.sanitizer.bypassSecurityTrustHtml(svgString);