/Javascript/AngularJS/Pass data from parent to child component angular 8

Pass data from parent to child component angular 8

Send event to child component angular

Parent-Component

eventsSubject: Subject<void> = new Subject<void>();

emitEventToChild() {
  this.eventsSubject.next();
}


Parent-HTML

<child [events]="eventsSubject.asObservable()"> </child>


Child-Component

private eventsSubscription: Subscription;

@Input() events: Observable<void>;

ngOnInit(){
  this.eventsSubscription = this.events.subscribe(() => doSomething());
}

ngOnDestroy() {
  this.eventsSubscription.unsubscribe();
}

Source: stackoverflow.com

Angular passing data to child component

Parent component:
<app-child-component [item]="data"></app-child-component>

Child component.ts
import { Component, Input } from '@angular/core'; // First, import Input
export class ItemDetailComponent {
  @Input() item = ''; // decorate the property with @Input()
}

Source: angular.io

Pass data from parent to child component angular 8

Parent-Component

eventsSubject: Subject<void> = new Subject<void>();

emitEventToChild() {
  this.eventsSubject.next();
}


Parent-HTML

<child [events]="eventsSubject.asObservable()"> </child>


Child-Component

private eventsSubscription: Subscription;

@Input() events: Observable<void>;

ngOnInit(){
  this.eventsSubscription = this.events.subscribe(() => doSomething());
}

ngOnDestroy() {
  this.eventsSubscription.unsubscribe();
}

Similar codes

6 votes372 views2 answers
Hide and show in angular 8
Javascript AngularJS
1 vote359 views1 answer
How to use edit button in angular
Javascript AngularJS
0 vote364 views1 answer
Angular http PUT
Javascript AngularJS
0 vote343 views1 answer
Import file json angular 12
Javascript AngularJS
0 vote346 views1 answer
Angular navbar is overlaying content
Javascript AngularJS
0 vote394 views1 answer
Datatable shows No data available in table in angular
Javascript AngularJS
0 vote343 views1 answer
Reuse jquery angular
Javascript AngularJS
0 vote338 views1 answer
Angular get class list for element
Javascript AngularJS
0 vote361 views1 answer
Angular create library
Javascript AngularJS
4 votes354 views1 answer
Downgrade angular version in project
Javascript AngularJS