unsafe fn on_delete_item<D: DomTypes>(
cx: &mut JSContext,
proxy: HandleObject<'_>,
value: HandleValue<'_>,
index: u32,
) -> boolunsafe fn on_delete_item<D: DomTypes>(
cx: &mut JSContext,
proxy: HandleObject<'_>,
value: HandleValue<'_>,
index: u32,
) -> bool