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[]"/>`	Use this type to set blocks of markup. An attribute of type `Aura.Component[]` is called a facet.
`Aura.Action`	`<aura:attribute name="onclick" type="Aura.Action"/>`	Use this type to pass an action to a component. See Using the Aura.Action Attribute Type.

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>

Using the Aura.Action Attribute Type

An Aura.Action is a reference to an action in the framework. If a child component has an Aura.Action attribute, a parent component can pass in an action handler when it instantiates the child component in its markup. This pattern is a shortcut to pass a controller action from a parent component to a child component that it contains, and is used for on* handlers, such as onclick.

See Also