webpack.prod.js

const path = require('path');
const TerserPlugin = require("terser-webpack-plugin");
module.exports = {
  entry: './src/index.js',
  optimization: {
    minimize: true,
    minimizer: [
      new TerserPlugin({
        extractComments: false,
      }),
    ],
  },
  module: {
    rules: [{
        test: /\.js$/,
        use: [{
          loader: 'babel-loader',
          options: {
            "presets": ["@babel/preset-env", "@babel/preset-react"],
            "plugins": [
              "@babel/plugin-proposal-class-properties"
            ]
          }
        }, ],
      },
      {
        test: /\.css$/,
        use: [
          {
            loader: 'style-loader'
          },
          {
            loader: 'css-loader'
          },
        ]
      }
    ]
  },
  output: {
    filename: 'index.js',
    path: path.resolve(__dirname, 'dist'), //定义输出文件夹dist路径
    library: "react-ui-component-loading",   
    libraryTarget: "umd",
  },
  mode: "production"
};