jQuery 1.8.3, HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, JavaScript
No-Library (pure JS), HTML, CSS, Babel + JSX
https://github.com/ReactTraining/react-router/issues/5434
Concat lists with intersection
https://gist.github.com/realmyst/1262561
No-Library (pure JS), HTML, CSS, JavaScript 1.7