Merge pull request #25 from Panzki/quickSort

Added quicksort to the sorting algorithms.

Sorts/quickSort.js

@@ -0,0 +1,38 @@
+/*
+* Quick sort is a comparison sorting algorithm that uses a divide and conquer strategy.
+* For more information see here: https://en.wikipedia.org/wiki/Quicksort
+*/
+function quickSort(items) {
+
+  var length = items.length;
+
+  if (length <= 1) {
+    return items;
+  }
+  var PIVOT = items[0];
+  var GREATER = [];
+  var LESSER = [];
+
+  for (var i = 1; i < length; i++) {
+    if (items[i] > PIVOT) {
+      GREATER.push(items[i]);
+    } else {
+      LESSER.push(items[i]);
+    }
+  }
+
+  var sorted = quickSort(LESSER);
+  sorted.push(PIVOT);
+  sorted = sorted.concat(quickSort(GREATER));
+  
+  return sorted;
+}
+
+//Implementation of quick sort
+
+var ar = [0, 5, 3, 2, 2];
+//Array before Sort
+console.log(ar);
+ar = quickSort(ar);
+//Array after sort
+console.log(ar);