Lightning Components Developer Guide

What is the Lightning Component Framework?
Quick Start
Creating Components
Using Components
Communicating with Events
Creating Apps
Debugging
Fixing Performance Warnings
Reference
Reference Doc App
Supported aura:attribute Types
Basic Types
Object Types
Standard and Custom Object Types
Collection Types
Custom Apex Class Types
Framework-Specific Types
aura:application
aura:component
aura:dependency
aura:event
aura:interface
aura:method
aura:set
Component Reference
Interface Reference
Event Reference
System Event Reference
Supported HTML Tags
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Framework-Specific Types

Here are the supported type values that are specific to the framework.

type Example Description
Aura.Component N/A A single component. We recommend using Aura.Component[] instead.
Aura.Component[] <aura:attribute name="detail" type="Aura.Component[]"/>

To set a default value for type="Aura.Component[]", put the default markup in the body of aura:attribute. For example:

1<aura:component>
2    <aura:attribute name="detail" type="Aura.Component[]">
3    <p>default paragraph1</p>
4    </aura:attribute>
5    Default value is: {!v.detail}
6</aura:component>
 Use this type to set blocks of markup. An attribute of type Aura.Component[] is called a facet.