build(store): build26 from 45504a2b

dist/dev/react/hooks/use-selector.js

@@ -0,0 +1,27 @@
+import { shallowEqual } from "../../core/shallow-equal.js";
+import { useRef, useSyncExternalStore } from "react";
+//#region src/react/hooks/use-selector.ts
+/**
+* Subscribe to derived state with customizable equality check.
+*
+* Low-level hook used internally by `useStore` and `useSnapshot`.
+*
+* @param subscribe - Subscribe function that returns an unsubscribe callback.
+* @param getSnapshot - Returns the current snapshot value.
+* @param selector - Derives a value from the snapshot.
+* @param isEqual - Custom equality function. Defaults to `shallowEqual`.
+*/
+function useSelector(subscribe, getSnapshot, selector, isEqual = shallowEqual) {
+	const cache = useRef(void 0);
+	const getSelectedSnapshot = () => {
+		const next = selector(getSnapshot());
+		if (cache.current !== void 0 && isEqual(cache.current, next)) return cache.current;
+		cache.current = next;
+		return next;
+	};
+	return useSyncExternalStore(subscribe, getSelectedSnapshot, getSelectedSnapshot);
+}
+//#endregion
+export { useSelector };
+
+//# sourceMappingURL=use-selector.js.map