前端性能优化学习

https://fex.baidu.com/blog/2014/05/build-performance-monitor-in-7-days/

https://woai3c.gitee.io/introduction-to-front-end-engineering/07.html#%E5%89%8D%E7%AB%AF%E7%9B%91%E6%8E%A7%E9%83%A8%E7%BD%B2

https://developer.mozilla.org/zh-CN/docs/Web/Performance

https://developer.mozilla.org/zh-CN/docs/Web/Performance