generic map object

mapObject.ts

function mapObject<K extends keyof any, T, TResult>(obj: Record<K, T>, makeResult: (val: T, key?: K) => TResult): Record<K, TResult> {
  return (Object.keys(eventMap) as K[]).reduce(
    (acc, key) => ({
      ...acc,
      [key]: makeResult(obj[key]),
    }),
    {} as Record<K, TResult>
  );
}