Function sortFactory

src/Operations.js:819–846

(collection, comparator, mapper)

}

export function sortFactory(collection, comparator, mapper) {
  if (!comparator) {
    comparator = defaultComparator;
  }
  const isKeyedCollection = isKeyed(collection);
  let index = 0;
  const entries = collection
    .toSeq()
    .map((v, k) => [k, v, index++, mapper ? mapper(v, k, collection) : v])
    .valueSeq()
    .toArray();
  entries
    .sort((a, b) => comparator(a[3], b[3]) || a[2] - b[2])
    .forEach(
      isKeyedCollection
        ? (v, i) => {
            entries[i].length = 2;
          }
        : (v, i) => {
            entries[i] = v[1];
          }
    );
  return isKeyedCollection
    ? KeyedSeq(entries)
    : isIndexed(collection)
      ? IndexedSeq(entries)
      : SetSeq(entries);
}

export function maxFactory(collection, comparator, mapper) {
  if (!comparator) {