Function useProvideThing

src/ui-react/context.ts:103–113

(
  thingId: Id,
  thing: ThingsByOffset[Offset],
  offset: Offset,
)

};

export const useProvideThing = <Offset extends Offsets>(
  thingId: Id,
  thing: ThingsByOffset[Offset],
  offset: Offset,
): void => {
  const {16: addExtraThingById, 17: delExtraThingById} = useContext(Context);
  useEffect(() => {
    addExtraThingById?.(offset, thingId, thing);
    return () => delExtraThingById?.(offset, thingId);
  }, [addExtraThingById, thingId, thing, offset, delExtraThingById]);
};

export const useThingIds = (offset: Offsets): Ids =>
  objIds((useContext(Context)[offset * 2 + 1] ?? {}) as IdObj<unknown>);