webpack.config.js

const path = require("path");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CssMinimizerPlugin = require("css-minimizer-webpack-plugin");
const TerserPlugin = require("terser-webpack-plugin");

module.exports = {
  entry: "./src/javascript/fr24_card.js",
  output: {
    path: path.resolve(__dirname, "dist"),
    filename: "fr24_card.js",
  },

  module: {
    rules: [
      {
        test: /\.less$/i,
        use: [
          // compiles Less to CSS
          MiniCssExtractPlugin.loader,
          "css-loader",
          "less-loader",
        ],
      },
    ],
  },

  optimization: {
    minimizer: [
      new CssMinimizerPlugin({
        minimizerOptions: {
          preset: [
            "default",
            {
              discardComments: { removeAll: true },
            },
          ],
        },
      }),
      new TerserPlugin({
        parallel: true,
      }),
    ],
  },

  plugins: [
    new MiniCssExtractPlugin({
      filename: "fr24_card.css",
    }),
  ],
};