Code golf, 140byt.es style
Starting point for creating JSFiddles with React. This uses React with Addons.
Mootools 1.3 (compat), HTML, CSS, JavaScript
jQuery Compat (edge), HTML, CSS, JavaScript
jQuery 1.4.3, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
Mootools 1.3.1 (compat), HTML, CSS, JavaScript
Mootools 1.3.2, HTML, CSS, JavaScript
jQuery 1.9.1, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript 1.7
jQuery 1.7.1, HTML, CSS, JavaScript
Mootools 1.4.5, HTML, CSS, JavaScript
Three.js r54, HTML, CSS, JavaScript
http://knockoutjs.com/examples/helloWorld.html