vue added favicon.ico

Method one: Modify index.html file

<link rel="shortcut icon" type="image/x-icon" href="favicon.ico"/>

Cons: After the package needs to be copied to the root directory favicon.ico

Method Two: Modify webpack profile

1, found under the Build webpack.dev.conf.js file

new HtmlWebpackPlugin({
      filename: 'index.html',
      template: 'index.html',
      inject: true,
      favicon: path.resolve('favicon.ico') // 新增
    }),

2, found under the Build webpack.prod.conf.js file

 new HtmlWebpackPlugin({
      filename: config.build.index,
      template: 'index.html',
      inject: true,
      favicon: path.resolve('favicon.ico'), //新增
      minify: {
        removeComments: true,
        collapseWhitespace: true,
        removeAttributeQuotes: true
        ...
    }),

After modifying the configuration file you need to restart npm run dev 
after packing will be favicon.ico in the root directory