Function mapKeys

src/common/map.ts:20–22

(map: Map<Key, unknown> | undefined)

): Map<Key, Value> => new map(entries);

export const mapKeys = <Key>(map: Map<Key, unknown> | undefined): Key[] => [
  ...(map?.keys() ?? []),
];

export const mapGet = <Key, Value>(
  map: Map<Key, Value> | undefined,