The Angular component with ngZone to interact with Ethereum

eth.component.zone.ts

import { Component, OnInit, OnDestroy, NgZone } from '@angular/core';
import { EthService } from './ethereum/eth.service';
 
@Component({
  selector: 'app-root',
  template: '<p>Current Account: {{ address }}',
  styles: []
})
export class AppComponent implements OnInit, OnDestroy {
  public address: string;
  public alive = true;
 
  constructor(private eth: EthService, private zone: NgZone) {}
 
  ngOnInit() {
    this.eth.currentAccount()
      .subscribe((account: string) => this.zone.run(() => {
        this.address = account;
      }));
  }
 
  ngOnDestroy() {
    this.alive = false;
  }
}