Reddit JSON fetch. Looks very simple. Copied from somewhere.
Snippet of YouTube Responsive Player
App.init structrue
No-Library (pure JS), HTML, CSS, JavaScript
jQuery 2.0.2, HTML, CSS, JavaScript
jQuery 1.6.4, HTML, CSS, JavaScript
Three.js r54, HTML, CSS, JavaScript
jQuery 1.6, HTML, CSS, JavaScript
jQuery (edge), HTML, CSS, JavaScript