Lightning Aura Components Developer Guide

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Lightning Aura Components Developer Guide Version 53.0, Winter ’22 @salesforcedocs Last updated: September 9, 2021 © Copyright 2000–2021 salesforce.com, inc. All rights reserved. Salesforce is a registered trademark of salesforce.com, inc., as are other names and marks. Other marks appearing herein may be trademarks of their respective owners. CONTENTS Chapter 1: What Is the Lightning Component Framework? . 1 What is Salesforce Lightning? . 2 Why Use the Aura Components Programming Model? . 2 Aura Components . 2 Events . 3 Browser Support for Aura Components . 3 My Domain Is Required to Use Lightning Components in Your Salesforce Org . 4 Using the Developer Console . 4 Online Content . 5 Chapter 2: Quick Start . 6 Before You Begin . 7 Trailhead: Explore Lightning Aura Components Resources . 7 Create a Component for Lightning Experience and the Salesforce Mobile App . 8 Load the Contacts . 11 Fire the Events . 15 Chapter 3: Creating Components . 17 Component Names . 19 Create Aura Components in the Developer Console . 19 Lightning Bundle Configurations Available in the Developer Console . 20 Create Aura Components Using Salesforce CLI . 21 Component Markup . 25 Component Namespace . 26 Using the Default Namespace in Organizations with No Namespace Set . 26 Using Your Organization’s Namespace . 27 Using a Namespace in or from a Managed Package . 27 Creating a Namespace in Your Organization . 27 Namespace Usage Examples and Reference . 28 Component Bundles . 30 Component IDs . 31 HTML in Components . 32 Supported HTML Tags . 33 CSS in Components . 34 Component Attributes . 36 Supported aura:attribute Types . 37 Basic Types . 38 Function Type . 40 Object Types . 40 Contents Standard and Custom Object Types . 40 Collection Types . 41 Custom Apex Class Types . 43 Framework-Specific Types . 44 Using Expressions . 46 Dynamic Output in Expressions . 47 Conditional Expressions . 48 Data Binding Between Components . 48 Value Providers . 53 Expression Evaluation . 60 Expression Operators Reference . 61 Expression Functions Reference . 64 Component Composition . 68 Component Body . 71 Component Facets . 72 Controlling Access . 73 Application Access Control . 76 Interface Access Control . 76 Component Access Control . 76 Attribute Access Control . 77 Event Access Control . 77 Using Object-Oriented Development . 77 Favor Composition Over Inheritance . 78 What is Inherited? . 78 Inherited Component Attributes . 79 Abstract Components . 81 Interfaces . 81 Inheritance Rules . 82 Best Practices for Conditional Markup . 83 Aura Component Versioning for Managed Packages . 84 Base Components with Minimum API Version Requirements . 85 Validations for Aura Component Code . 87 Validation When You Save Code Changes . 87 Validation During Development Using the Salesforce CLI . 88 Review and Resolve Validation Errors and Warnings . 92 Aura Component Validation Rules . 93 Salesforce Lightning CLI (Deprecated) . 99 Using Labels . 99 Using Custom Labels . 100 Input Component Labels . ..

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