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How to set default value for Aura attribute?
When setting a default value, expressions using the $Label, $Locale, and $Browser global value providers are supported. Alternatively, to set a dynamic default, use an init event. See Invoking Actions on Component Initialization. Determines if the attribute is required. The default is false. A summary of the attribute and its usage.
What do you need to know about Aura in Java?
Required. The name of the attribute. For example, if you set on a component called aura:newCmp, you can set this attribute when you instantiate the component; for example, . Required. The type of the attribute.
What are lightning component attribute : aura : attribute?
Lightning Component Attribute (aura:attribute) are like member variables on a class in Apex. tag is used to add an attribute to the lightning component and Salesforce lightning App. Each attribute must have “ name ” and “ type “.
Which is the best description of an aura attribute?
aura:attribute describes an attribute available on an app, interface, component, or event. Indicates whether the attribute can be used outside of its own namespace.
What do you need to know about supported aura?
Supported aura:attribute Types Attribute Name Description access Indicates whether the attribute can be u name Required. The name of the attribute. For type Required. The type of the attribute. For default The default value for the attribute, whi
When does the aura valuechange event get fired?
This event is fired when an attribute value changes. Handle this event using the aura:handler tag. A component can have multiple aura:handler tags to detect changes to different attribute values. This example updates an attribute value, which fires the aura:valueChange event.
How to test array declaration in Salesforce apex?
Then open your developer console (Click on your name on top right hand corner-> Developer console) copy paste the below code.. click execute… and then click on open Ra w Log… you will see Actual value as 100. Just tested and all works fine.. not sure what exactly u doing.
An attribute can have a type corresponding to an Apex class. For example, this is an attribute for a custom Color Apex class: Component attribute types can be custom Apex classes, and the following standard Apex classes.
Can a custom class be used for an attribute?
Custom classes used for component attributes shouldn’t be inner classes or use inheritance. While these Apex language features might work in some situations, there are known issues, and their use is unsupported in all cases. If an attribute can contain more than one element, use an array.