Function descend

test/unit/core/other/indexes.test.ts:43–44

(sortKey1: SortKey, sortKey2: SortKey)

const ascend = (sortKey1: SortKey, sortKey2: SortKey): number =>
  (sortKey1 ?? 0) > (sortKey2 ?? 0) ? 1 : -1;
const descend = (sortKey1: SortKey, sortKey2: SortKey): number =>
  (sortKey1 ?? 0) < (sortKey2 ?? 0) ? 1 : -1;
const oddAscend = (sortKey1: SortKey, sortKey2: SortKey, sliceId: Id) =>
  sliceId == 'odd' ? ((sortKey1 ?? 0) > (sortKey2 ?? 0) ? 1 : -1) : 0;
const oddDescend = (sortKey1: SortKey, sortKey2: SortKey, sliceId: Id) =>