Lightning Aura Components Developer Guide

Introducing Aura Components
Quick Start
Creating Components
Using Components
Communicating with Events
Communicating Across the DOM with Lightning Message Service
Creating Apps
Styling Apps
Developing Secure Code
Using JavaScript
Working with Salesforce Data
Testing Components
Debugging
Performance
Reference
Lightning Component Library
System Tag Reference
aura:application
aura:dependency
aura:event
aura:interface
aura:method
aura:set
JavaScript API
PDF

Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

aura:event

An event is represented by the aura:event tag, which has the following attributes.
Attribute Type Description
access String Indicates whether the event can be extended or used outside of its own namespace. Possible values are public (default), and global.
description String A description of the event.
extends Component The event to be extended. For example, extends="namespace:myEvent".
type String Required. Possible values are COMPONENT or APPLICATION.