create-react-app 编译进度条配置

安装：

yarn add webpackbar

修改webpack.config.js文件：

const WebpackBar = require('webpackbar')
plugins: [
  // ...
  new webpack.ProgressPlugin(),
  new WebpackBar()
]

webpack.ProgressPlugin() 是webpack内置插件，webpack.ProgressPlugin，WebpackBar用来显示编译时长