Lightning Components Flashcards

Which Lightning component attribute type would you use to pass a collection of records from a parent component to a child component?

Answer: List

The List type is used to pass collections of records or values between Lightning components.

In Lightning App Builder, which property controls whether a component appears on desktop but not mobile?

Answer: Form Factor

Form Factor in Lightning App Builder determines whether a component displays on desktop, phone, or both.

What happens when a user navigates away from a Lightning component that uses the lightning:navigation mixin?

Answer: The component is destroyed and recreated on return

When navigating away, Lightning components are destroyed; state is not automatically preserved unless explicitly managed.

Which base Lightning component would you use to display a modal dialog in a Lightning Web Component?

Answer: lightning-modal

lightning-modal is the base component used to display modal dialogs in Lightning Web Components.

What is the purpose of the 'targets' property in a Lightning Web Component's metadata file?

Answer: Defines where the component can be used in Salesforce

The 'targets' property in the .js-meta.xml file specifies which Salesforce contexts (App Builder, Flow, etc.) can use the component.

Which utility bar feature can be configured using a Lightning component in App Builder?

Answer: Persistent panels at the bottom of the app

The utility bar hosts Lightning components as persistent panels at the bottom of a Lightning app, accessible to users at all times.

When configuring a Lightning component for the App Builder, which file must be present to make the component available?

Answer: .js-meta.xml metadata file

The .js-meta.xml metadata file must be present and properly configured to expose a Lightning Web Component in App Builder.