Any good examples of Vanilla.js applications?

Question

JavaScript

I have formulated my question quite clearly. Are there any quality applications with non-minified, perhaps even open source, written in Vanilla.js? It is desirable that it contains things like inheritance through prototypes, interacts with the user through different events, and not just onclick. You can use singlepage, or you can use some html5 audio player.
It is necessary for educational purposes, so the quality of the code and its sane amount are important.

Answer 1

todomvc.com/examples/vanillajs

Answer 2

Ember.js

Answer 3

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