// Tutorial //

Component Interaction With Outputs in Angular

Published on November 8, 2016
Default avatar
By Alligator.io
Developer and author at DigitalOcean.
Component Interaction With Outputs in Angular

While we believe that this content benefits our community, we have not yet thoroughly reviewed it. If you have any suggestions for improvements, please let us know by clicking the “report an issue“ button at the bottom of the tutorial.

Outputs provide a mechanism for a child component to emit events up to its parent component.

This post covers Angular 2 and up

In the parent component’s template, define event bindings as part of the child component’s selector. A binding should point to a method defined in the parent component’s class that takes action on the data received from the child. $event contains the payload emitted from the child:

Parent component template: story.component.html
<selected-story (selectStory)="getStory($event)">
Parent component class: story.component.ts
export class StoryComponent {
  story: string = '';

In the child component, import Output and EventEmitter from @angular/code and define your outputs with the @Output decorator like this:

Child component class: selected-story.component.ts
import { Component, Output, EventEmitter } from '@angular/core';

export class SelectedStoryComponent {
  story: string;
  @Output() selectStory = new EventEmitter<string>();

Our EventEmitter object has an emit() method that pushes the event up to the parent component.

Now in the child component’s template, you can define event bindings that will emit back up to the parent:

Child component template: selected-story.component.html
<input #storyChoice placeholder="Your fav story">
<button (click)="onSelectStory(storyChoice.value)">

See Also:

If you’ve enjoyed this tutorial and our broader community, consider checking out our DigitalOcean products which can also help you achieve your development goals.

Learn more here

About the authors
Default avatar
Developer and author at DigitalOcean.

Still looking for an answer?

Was this helpful?

This textbox defaults to using Markdown to format your answer.

You can type !ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

I think you should be more clear about the methods that you haven’t implemented to accomplished the purpose of this “tutorial”.