Implement quick sort

Author: KarenOk

Sorting/QuickSort.js

@@ -84,3 +84,13 @@ function pivot(arr, comparator, start = 0, end = arr.length - 1) {
 	pivotIndex = swapIndex - 1;
 	return pivotIndex;
 }
+
+function quickSort(arr, comparator, start = 0, end = arr.length - 1) {
+	if (start > end) return [];
+
+	const pivotIndex = pivot(arr, comparator, start, end);
+	quickSort(arr, comparator, start, pivotIndex - 1);
+	quickSort(arr, comparator, pivotIndex + 1, end);
+
+	return arr;
+}