subject property

BehaviorSubject<T> subject
getter/setter pair

The reactive BehaviorSubject<T> that broadcasts current field values to listeners, enabling real-time UI updates.

Initialized empty and populated on first successful getValue call. Emits new values after setValue operations. Integrates with form widgets like ArcaneField for automatic rebuilding on changes; use subject.stream for observing.

Implementation

BehaviorSubject<T> subject = BehaviorSubject<T>();