webpack/template/webpack.prod.js

const { merge } = require('webpack-merge');
const HtmlMinimizerPlugin = require("html-minimizer-webpack-plugin");
const TerserPlugin = require("terser-webpack-plugin");

const common = require('./webpack.common.js');

module.exports = merge(common, {
  mode: 'production',
  optimization: {
    minimize: true,
    minimizer: [
      new HtmlMinimizerPlugin(),
      new TerserPlugin()
    ],
  },
});