Página de actualización angular sin recargar el ejemplo de código

Ejemplo 1: cómo actualizar la página angular

refresh(): void {
    window.location.reload();
}

Ejemplo 2: página de actualización angular sin recargar

this.router.navigate(['path/to'])
  .then(() => {
    window.location.reload();
  });

Ejemplo 3: componente de recarga angular

reloadCurrentRoute() {
    let currentUrl = this.router.url;
    this.router.navigateByUrl("https://foroayuda.es/", {skipLocationChange: true}).then(() => {
        this.router.navigate([currentUrl]);
    });
}

Ejemplo 4: página actual de recarga angular 6

import { DOCUMENT } from '@angular/common';
import { Component, Inject } from '@angular/core';

@Component({
  selector: 'app-refresh-banner-notification',
  templateUrl: './refresh-banner-notification.component.html',
  styleUrls: ['./refresh-banner-notification.component.scss']
})

export class RefreshBannerNotificationComponent {

  constructor(
    @Inject(DOCUMENT) private _document: Document
  ) {}

  refreshPage() {
    this._document.defaultView.location.reload();
  }
}

Ejemplo 5: como hacer que un componente se recargue en angular

DeleteEmployee(id:number)
  {
    this.employeeService.deleteEmployee(id)
    .subscribe( 
      (data) =>{
        console.log(data);
        this.ngOnInit();
      }),
      err => {
        console.log("Error");
      }   
  }

Ejemplo 6: componente de actualización angular sin recargar la página

/*You can use a BehaviorSubject for communicating between different 
components throughout the app. 
You can define a data sharing service containing the BehaviorSubject to 
which you can subscribe and emit changes.

Define a data sharing service
*/

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

@Injectable()
export class DataSharingService {
    public isUserLoggedIn: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
}

/*Add the DataSharingService in your AppModule providers entry.

Next, import the DataSharingService in your <app-header> and in the 
component where you perform the sign-in operation. In <app-header> 
subscribe to the changes to isUserLoggedIn subject:
*/

import { DataSharingService } from './data-sharing.service';

export class AppHeaderComponent { 
    // Define a variable to use for showing/hiding the Login button
    isUserLoggedIn: boolean;

    constructor(private dataSharingService: DataSharingService) {

        // Subscribe here, this will automatically update 
        // "isUserLoggedIn" whenever a change to the subject is made.
        this.dataSharingService.isUserLoggedIn.subscribe( value => {
            this.isUserLoggedIn = value;
        });
    }
}

/*In your <app-header> html template, you need to add the *ngIf 
condition e.g.:
*/

<button *ngIf="!isUserLoggedIn">Login</button> 
<button *ngIf="isUserLoggedIn">Sign Out</button>

// Finally, you just need to emit the event once the user has logged in e.g:

someMethodThatPerformsUserLogin() {
    // Some code 
    // .....
    // After the user has logged in, emit the behavior subject changes.
    this.dataSharingService.isUserLoggedIn.next(true);
}

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