utm-params-extractor/webpack.config.js

const path = require('path');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');
const TerserPlugin = require('terser-webpack-plugin');

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'main.js',
    library: {
      name: 'yourLibrary',
      type: 'umd',
    },
    globalObject: 'this',
  },
  mode: 'production',
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env'],
          },
        },
      },
    ],
  },
  optimization: {
    minimizer: [new TerserPlugin()],
  },
  plugins: [new CleanWebpackPlugin()],
};