Function getIdsAsProp

test/unit/core/ui-solid/ui-solid-dom.test.tsx:37–38

(id1: Id, id2?: Id)

);

const getIdsAsProp = (id1: Id, id2?: Id) =>
  id2 == null ? {0: id1} : {0: id1, 1: id2};

const nullEvent = (_offset: number) => null;
const act = (callback: () => void) => callback();