Angular 2+: Can the component lifecycle hooks be executed independently of the component?

Question

Angular 2+: Can the component lifecycle hooks be executed independently of the component?

I am faced with a challenge where I need to dynamically render a component using the following code snippet:

const component = this.resolver.resolveComponentFactory<BaseComponent(CommonPopupComponent).create(this.injector);
component.instance.data = data;
return component.location.nativeElement;

The issue is that I cannot utilize lifecycle hooks within myComponent due to its extension of another class.

@Component({
      selector: 'app-common-popup',
      templateUrl: './common-popup.component.html',
      styleUrls: ['./common-popup.component.scss'],
     changeDetection: ChangeDetectionStrategy.OnPush })
export class CommonPopupComponent extends BasePopupComponent implements OnInit { ... }

However, I have a requirement to execute a function when CommonPopupComponent is initialized (specifically in ngOnInit). Is there a way to call a function belonging to CommonPopupComponent from outside when it is being initialized?

Currently, I am calling my function within the constructor of CommonPopupComponent, but I feel there might be a more efficient approach available.

angular typescript

Answer 1

Answer №1

@Component({
      selector: 'app-custom-popup',
      templateUrl: './custom-popup.component.html',
      styleUrls: ['./custom-popup.component.scss'],
     changeDetection: ChangeDetectionStrategy.OnPush })
export class CustomPopupComponent extends BasePopupComponent implements OnInit {
    override onInit(): void {
      super.ngOnInit();
      ... your custom code here
    }
}

Answer 2

@Component({
      selector: 'app-custom-popup',
      templateUrl: './custom-popup.component.html',
      styleUrls: ['./custom-popup.component.scss'],
     changeDetection: ChangeDetectionStrategy.OnPush })
export class CustomPopupComponent extends BasePopupComponent implements OnInit {
    override onInit(): void {
      super.ngOnInit();
      ... your custom code here
    }
}

Answer 3

Answer №2

To execute your code, place ngOnInit within the CommonPopupComponent and activate your custom function.

ngOnInit() {
super.ngOnInit();
// Insert call to your function here
this.yourFunction();
}

Answer 4

To execute your code, place ngOnInit within the CommonPopupComponent and activate your custom function.

ngOnInit() {
super.ngOnInit();
// Insert call to your function here
this.yourFunction();
}

Angular 2+: Can the component lifecycle hooks be executed independently of the component?

Answer №1

Answer №2

Similar questions

Using subject to perform an Angular combineLatest without an initial value

Unable to stop at breakpoints using Visual Studio Code while starting with nodemon

Accessing state from ngrx in Angular and executing an HTTP request

Ways to expand the nested object in an interface: A practical example using MUI theme

Scope Error in VueJS Project with TypeScript

Publish the file on Angular 7 route for accessibility

*NgFor toggle visibility of specific item

Adding JavaScript files to a project in Ionic2 with Angular2 integration

The potential for an 'undefined' object in TypeScript React is a concern that should be addressed

how does an SPA handle HTTP requests when the route is modified?

Why am I restricted to adjusting mat-elevation settings within the component's CSS exclusively?

Develop Connective Plugins using Angular 12

Half the time, the Paypal button fails to load on Angular

Using Nginx and Tomcat to Serve a Spring and Angular Application

best practice for updating a node in ng-zorro-antd tree

Typescript and the way it handles responses from REST APIs

Navigating through the child elements of a parent element in Aurelia

The ngx-image-cropper in Angular only necessitates a button click, making the default cropper unnecessary

Select a randomly generated number from an array, which dynamically updates every time the browser is refreshed

What is the best way to pass an input value into a function when a form is submitted in Angular 6?