Speaking of images and videos, we often use img/video to preview them. However, there are more ways to do this. Today we will introduce some new preview techniques based on frames, such as frame-based video preview, drawing continuous frames over a time, and extract any frame of a gif image.

业务最开始实现的视频播放功能用的是 xgplayer 插件，这个插件比较重，更侧重于直播。而我们业务所需要的仅仅是一个美化版本的 <video>，为此，我们需要基于 video api 实现自己的播放器。

In this post, we will learn how to build your own UI component library.

本文主要介绍一下当下 general & vue-based 前端项目结构划分

关于 promise 介绍的太多了，今天就推荐一本我收藏已久的小册子，Javascript with promise - douban