map promises

map-promises.ts

export async function sequentially<T, R>(list: T[], asyncFunction: (t: T) => Promise<R>) {
  const newList = [] as R[];
  for (const i of list) {
    newList.push(await asyncFunction(i));
  }
  return newList;
}

/*
  // then use like so:
 const sections = await sequentially(schedules, async schedule => {
    const scheduleDetail = await fetchScheduleDetail(termCode, schedule.crn);
  });
  */

await Create.reduce(async (accum, data) => { const created = await creator(data); return [...accum, created]; }, []);