Checks if the current page is visible or not
:books: 检查中文 markdown 编写格式规范的命令行工具，基于 AST，方便集成 ci，写博客 / 文档必备。支持 API 调用！
Awesome handling of keyboard events
A bit like Solr, but much smaller and not as bright
jStorage is a simple key/value database to store data on browser side. As a bonus it is also a local pubsub platform to sync data between tabs/windows
Asynchronous flow control with a functional taste to it
A Portal Component for Vuejs, for rendering DOM outside of a component, anywhere in the document.
A simple, modern, browser notification system
Webshims Lib is a modular capability-based polyfill-loading library
LMD: Lazy Module Declaration. Be lazy: lazy load @ lazy init
A platform for running scripts on many browsers
jQuery's missing utils and special events
AmplifyJS is a set of components for data management and application communication.
Backbone data binding, model binding plugin. The real logic-less templates.