http://www.codewars.com/kata/55c9fb1b407024afe6000055/train/javascript
No-Library (pure JS), HTML, CSS, JavaScript
http://www.codewars.com/kata/53dbd5315a3c69eed20002dd/solutions/javascript
http://www.codewars.com/kata/55a3cb91d1c9ecaa2900001b/train/javascript
jQuery 1.12.0, HTML, CSS, JavaScript
jQuery 1.12.2, HTML, CSS, JavaScript
Three.js r54, HTML, CSS, JavaScript