PromiseNote(front-end-starter-kit) How to start your front-end work? Useful Libraries IntersectionObserver-polyfill Ramdajs Mockjs Expressjs polyfill.io Links Markdown 语法 ES6辅导书 (es6tutorial) - 阮一峰 前端开发基础规范 JS函数式编程指南 Fun hacks for faster content