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node-markdown-preview

node实现markdown实时预览[热加载],自动打开浏览器。

how to start

npm install

how to use

node index.js [mdfile] [port]

mdfile: 指定md文件, 必选
port: 服务端口, 可选, 默认8888

实现

  • http模块提供推送服务和页面预览服务
  • 页面预览效果借鉴webpack的热加载,无需刷新,即使用HTML5 服务器发送事件(server-sent event)。当然也可以用websocket实现,但websocket是双向传输,相对较重。而SSE是单向传输(服务器向浏览器传输),很轻巧,和markdown预览可以说配合的相得益彰了。
  • markdown解析使用markdown-it实现
  • 自动打开浏览器使用opn实现,封装了不同操作系统的调用浏览器命令的姿势

图解

效果

1 自动启动打开浏览器

2 [热加载]实时预览

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