- first: http://jsfiddle.net/zsFvE/ solution: http://jsfiddle.net/zsFvE/86/
- last: http://jsfiddle.net/hJZUE/ solution: http://jsfiddle.net/hJZUE/76/
- add items: http://jsfiddle.net/FD7jQ/ solution: http://jsfiddle.net/FD7jQ/21/
- first loop http://jsfiddle.net/YM7th/ solution: http://jsfiddle.net/YM7th/72/
- backwards http://jsfiddle.net/5QgwK/ solution: http://jsfiddle.net/5QgwK/13/
- evens http://jsfiddle.net/7fseh/ solution: http://jsfiddle.net/7fseh/12/
- evens and odds http://jsfiddle.net/4zfcz/ solution: http://jsfiddle.net/4zfcz/75/
- Flag http://jsfiddle.net/j95XA/ solution: http://jsfiddle.net/j95XA/20/
- reverse http://jsfiddle.net/QqrLs/ solution: http://jsfiddle.net/QqrLs/9/
- groceryList http://jsfiddle.net/2Lt4m/1/ solution: http://jsfiddle.net/2Lt4m/16/
- copyAndAdd http://jsfiddle.net/nm5Q7/ solution: http://jsfiddle.net/nm5Q7/20/
- compact: http://jsfiddle.net/kcmLh/ solution: http://jsfiddle.net/kcmLh/52/
If you finish all the fiddes, do the 'aboutArrays' section of the Koans here https://github.com/devmountain/js-koans