1+ /*
2+ * Cocktail shaker sort is a sort algorithm that is a bidirectional bubble sort
3+ * more information: https://en.wikipedia.org/wiki/Cocktail_shaker_sort
4+ * more information: https://en.wikipedia.org/wiki/Bubble_sort
5+ *
6+ */
7+ function cocktailShakerSort ( items ) {
8+ 9+ for ( var i = items . length - 1 ; i > 0 ; i -- ) {
10+ var swapped = false ;
11+ var temp , j ;
12+ 13+ // backwards
14+ for ( j = 0 ; j > i ; j -- ) {
15+ if ( items [ j ] < items [ j - 1 ] ) {
16+ temp = items [ j ] ;
17+ items [ j ] = items [ j - 1 ] ;
18+ items [ j - 1 ] = temp ;
19+ swapped = true ;
20+ }
21+ }
22+ 23+ //forwards
24+ for ( j = 0 ; j < i ; j ++ ) {
25+ if ( items [ j ] > items [ j + 1 ] ) {
26+ temp = items [ j ] ;
27+ items [ j ] = items [ j + 1 ] ;
28+ items [ j + 1 ] = temp ;
29+ swapped = true ;
30+ }
31+ }
32+ if ( ! swapped ) {
33+ return ;
34+ }
35+ }
36+ }
37+ 38+ //Implementation of cocktailShakerSort
39+ 40+ var ar = [ 5 , 6 , 7 , 8 , 1 , 2 , 12 , 14 ] ;
41+ //Array before Sort
42+ console . log ( ar ) ;
43+ cocktailShakerSort ( ar ) ;
44+ //Array after sort
45+ console . log ( ar ) ;
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