Function delExtraThingById

src/ui-solid/Provider.tsx:75–90

(thingOffset: Offsets, id: Id)

  };

  const delExtraThingById = (thingOffset: Offsets, id: Id): void => {
    setExtraThingsById((extraThingsById) =>
      !objHas(extraThingsById[thingOffset], id)
        ? extraThingsById
        : (arrayWith(
            extraThingsById,
            thingOffset,
            objDel(
              extraThingsById[thingOffset] as IdObj<
                ThingsByOffset[typeof thingOffset]
              >,
              id,
            ),
          ) as ExtraThingsById),
    );
  };

  const contextValue = createMemo<ContextValue>(() => [
    ...mergeParentThings(