Lightning Aura Components Developer Guide

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Introducing Aura Components
Quick Start
Creating Components
Component Names
Create Aura Components in the Developer Console
Create Aura Components Using Salesforce CLI
Component Markup
Component Namespace
Component Bundles
Component IDs
HTML in Components
CSS in Components
Component Attributes
Using Expressions
Component Composition
Component Body
Component Facets
Controlling Access
Using Object-Oriented Development
Best Practices for Conditional Markup
Aura Component Versioning for Managed Packages
Base Components with Minimum API Version Requirements
Validations for Aura Component Code
Using Labels
Using Custom Labels
Input Component Labels
Dynamically Populating Label Parameters
Getting Labels in JavaScript
Getting Labels in Apex
Setting Label Values via a Parent Attribute
Localization
Working with Lightning Base Components
Supporting Accessibility
Writing Documentation for the Component Library
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
PDF

Using Labels

Labels are text that presents information about the user interface, such as in the header (1), input fields (2), or buttons (3). While you can specify labels by providing text values in component markup, you can also access labels stored outside your code using the $Label global value provider in expression syntax.
Labels display information about the user interface.
This section discusses how to use the $Label global value provider in these contexts:
  • The label attribute in input components
  • The format() expression function for dynamically populating placeholder values in labels