arcgis-core-utilities

Reactive utilities in the ArcGIS Maps SDK handle property watching through the reactiveUtils module. This provides watch, when, and once-style state management to trigger UI updates when reactive properties change.

The Accessor pattern is a foundational ArcGIS construct for creating reactive properties and computed values. You need it when building robust map applications that require reliable data binding and automatic UI updates based on state changes.

promiseUtils manages asynchronous workflows in ArcGIS applications. It provides specialized functions for debounced and batched async operations, reducing boilerplate when handling concurrent network requests or background data processing tasks.

Yes, ArcGIS workers enable background processing for heavy computational tasks. This prevents UI freezing by offloading intensive operations from the main thread, keeping map applications responsive during complex spatial calculations.

ArcGIS intl utilities provide locale-aware formatting for internationalization. They handle number and date formatting according to the user's locale, ensuring map UI elements display correctly across different regional settings.

ArcGIS Collections provide event-driven data structures designed for managing map layers and features. They integrate with reactiveUtils to automatically trigger updates when items are added, removed, or modified in the collection.