“Emissor de eventos angulares” Respostas de código

Emissor de eventos angulares

  @Output() open: EventEmitter<any> = new EventEmitter();


  toggel() {
  	this.open.emit(null);
  }	
Gorgeous Gentoo

EventEmitter em angular

So, how to use it properly?
Simply use it to emit events from your component. Take a look a the following example.

@Component({
    selector : 'child',
    template : `
        <button (click)="sendNotification()">Notify my parent!</button>
    `
})
class Child {
    @Output() notifyParent: EventEmitter<any> = new EventEmitter();
    sendNotification() {
        this.notifyParent.emit('Some value to send to the parent');
    }
}

@Component({
    selector : 'parent',
    template : `
        <child (notifyParent)="getNotification($event)"></child>
    `
})
class Parent {
    getNotification(evt) {
        // Do something with the notification (evt) sent by the child!
    }
}
How not to use it?
class MyService {
    @Output() myServiceEvent : EventEmitter<any> = new EventEmitter();
}
Stop right there... you're already wrong...
Aamir Farooq

O que o emissor de eventos faz no angular

Data flows into your component via property bindings and flows out of your component through event bindings. If you want your component to notify his parent about something you can use the Output decorator with EventEmitter to create a custom event.
Cruel Cassowary

Respostas semelhantes a “Emissor de eventos angulares”

Perguntas semelhantes a “Emissor de eventos angulares”

Mais respostas relacionadas para “Emissor de eventos angulares” em JavaScript

Procure respostas de código populares por idioma

Procurar outros idiomas de código