Function has

src/ui-solid-inspector/index.tsx:434–435

(cellId: Id)

const AddCell = (props: OnDoneProp & RowProps) => {
  const store = useStoreOrStoreById(props.store)();
  const has = (cellId: Id) =>
    store?.hasCell(props.tableId, props.rowId, cellId) ?? false;
  return NewId({
    onDone: props.onDone,
    suggestedId: getNewIdFromSuggestedId('cell', has),