webpack打包配置

build文件夹中修改webpack.prod.conf.js

output: {
    path: config.build.assetsRoot,
    filename: '[name].[contenthash].js',
    chunkFilename: '[name].[contenthash].chunk.js'
  //浏览器会加载缓存的图片
  },

 new UglifyJsPlugin({
      uglifyOptions: {
        //删除注释
        output:{
          comments:false
        },
        compress: {
          //删除console 和 debugger  删除警告
          warnings: false,
          drop_debugger:true,
          drop_console:true
        }
      },
      sourceMap: config.build.productionSourceMap,
      parallel: true
    }),