import {Injectable} from '@angular/core';
import {fromEvent} from 'rxjs';


@Injectable({providedIn: 'root'})
export class NetworkService {

  isOnline;

  constructor() {

    this.isOnline = window.navigator.onLine;

    fromEvent(window, 'online').subscribe(e => {
      this.online = true;
    });
    fromEvent(window, 'offline').subscribe(e => {
      this.online = false;
    });
  }
}