/Javascript/AngularJS/Angular 4 execute function from another component

Angular 4 execute function from another component

//Angular 4 execute function from another component

 didn't get time to test it but similar solution worked for me. the code created for your need.

Create a service like this

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

@Injectable()
export class MessageService {
    private _listners = new Subject<any>();

    listen(): Observable<any> {
       return this._listners.asObservable();
    }

    filter(filterBy: string) {
       this._listners.next(filterBy);
    }

}
then implement in your header component like this

// header.component.ts
@Component({
    selector: 'header',
    templateUrl: `
        <section class="container">
            <button (click)="clickFilter()">Open filter</button>
        </section>
    `
 })

export class HeaderComponent {
     @Output() onFilter: EventEmitter = new EventEmitter();

     constructor(private _messageService: MessageService){}
     clickFilter():void {
         // this.onFilter.emit('Register click');
         this._messageService.filter('Register click');
     }
 }
then use in your store component like this

@Component({
    selector: 'store',
    template: `<article class="card">
                 Test
              </article>`
})

export class StoreComponent {
    constructor(private _messageService: MessageService){
        this._messageService.listen().subscribe((m:any) => {
            console.log(m);
            this.onFilterClick(m);
        })
    }

    onFilterClick(event) {
        console.log('Fire onFilterClick: ', event);
    }
 }
The concept is that you can use observable in a service and subscribe in the component where you want it (store.component) and can send event from anywhere in the app like i did in the header.component

I hope it will help you

Similar codes

5 votes338 views1 answer
Update angular cli 10
Javascript AngularJS
32 votes401 views4 answers
Angular version command
Javascript AngularJS
1 vote349 views1 answer
Angular contains both .browserslistrc and browserslist
Javascript AngularJS
0 vote353 views1 answer
AngularJS module can be created using ............ A. module.create(); B.angular.create(); C.angular.module(); D.var myModule = new module();
Javascript AngularJS
0 vote357 views1 answer
Angular ngif object not null
Javascript AngularJS
7 votes329 views2 answers
Install angular fire
Javascript AngularJS
0 vote325 views1 answer
Recuperer une image dans la base de données avec angular
Javascript AngularJS
0 vote343 views2 answers
Zoom map around the marker angular
Javascript AngularJS
0 vote330 views1 answer
Angular http PUT
Javascript AngularJS
0 vote316 views1 answer
Delete from array in angular
Javascript AngularJS