lwc-patterns

Lightning Web Components best practices recommend separating concerns between container components for data fetching and presentational components for UI rendering. This separation creates maintainable and efficient LWC architectures across Salesforce applications.

The Wire Service efficiently invokes Apex methods reactively, caching data for Lightning Web Components automatically. Use imperative Apex for dynamic parameters, conditional execution, or when you need explicit control over error handling and data fetching timing.

Lightning Web Components use event-driven data binding by dispatching custom events from child components and handling them in parent containers. This pattern ensures one-way data flow, maintaining predictable state management across your LWC hierarchy.

LWC security guidelines advise avoiding innerHTML to prevent cross-site scripting and handling Apex calls securely. Lightning Web Components enforce Lightning Locker or Lightning Web Security, requiring strict input validation and secure data handling patterns.

Optimize Lightning Web Components performance by leveraging the Wire Service for cached data and minimizing reactive property updates. Implement graceful error handling patterns to catch Apex failures and display user-friendly messages without breaking the UI.

Standard meta XML targets for Lightning Web Components define where the component appears in Salesforce, such as record pages, app pages, and community pages. Configuring these targets correctly ensures your LWC is available in the intended Salesforce experiences.