Lightning Aura Components Developer Guide

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
Validation When You Save Code Changes
Validation During Development Using ESLint
Aura Component Validation Rules
Validation Rules Used at Save Time
Validate JavaScript Intrinsic APIs ( ecma-intrinsics ) )
Validate Aura API ( aura-api ) )
Validate Aura Component Public API ( secure-component ) )
Validate Secure Document Public API ( secure-document ) )
Validate Secure Window Public API ( secure-window ) )
Disallow Use of caller and and callee ( ( no-caller ) )
Disallow Script URLs ( no-script-url ) )
Disallow Extending Native Objects ( no-extend-native ) )
Disallow Calling Global Object Properties as Functions ( no-obj-calls ) )
Disallow Use of __iterator__ Property ( Property ( no-iterator ) )
Disallow Use of __proto__ ( ( no-proto ) )
Disallow with Statements ( Statements ( no-with ) )
Using Labels
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

Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Validation Rules Used at Save Time

The following rules are used for validations that are done when you save your Aura component code.

Validation failures for any of these rules prevents saving changes to your code.

Lightning Platform Rules

These rules are specific to Aura component JavaScript code. These custom rules are written and maintained by Salesforce.

Validate Aura API ( aura-api ) )
This rule verifies that use of the framework APIs is according to the published documentation. The use of undocumented or private features is disallowed.
Validate Secure Document Public API ( secure-document ) )
This rule validates that only supported functions and properties of the document global are accessed.
Validate Secure Window Public API ( secure-window ) )
This rule validates that only supported functions and properties of the window global are accessed.