Documentation. QUnit. Ender-js/Ender - GitHub. JavaScript dependency management and concatenation: Sprockets. Ender.js - The open submodule library. Tuesday Apr 5 2011 With great excitement it brings me pleasure to announce an all-to-predictable endpoint of recent events — Ender.js, an open submodule library. Ender is a small yet powerful JavaScript library composed of application agnostic opensource submodules wrapped in a slick intuitive interface. At only 8k Ender can help you build anything from small prototypes to providing a solid base for large-scale rich applications. Inside Ender you get.