Function qsort

qsort<T>(arr, swap?, comparator?): T
Sorts the array in-place using an optional comparator and invokes a callback after a pair of elements was swapped.

swap or comparator callbacks are guaranteed to be called after the elements of arr are swapped.
Type Parameters
- T extends ArrayLike<any>
  The input array.
Parameters
- arr: T
  The mutable array-like data structure that is sorted in-place.
- Optionalswap: ((i: number, j: number) => void)
  The callback that is invoked with indices that were swapped.
  - - (i, j): void
    - Parameters
      i: number
      j: number
      Returns void
- Optionalcomparator: Comparator<ArrayValue<T>>
  The callback that defines the sort order. If omitted, the array elements are compared using comparison operators.
Returns T
The input array.