webpack.prod.js

const path = require("path");

const webpack = require("webpack");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const HtmlWebPackPlugin = require("html-webpack-plugin");

module.exports = {
  mode: "production",
  entry: "./src/index.js",
  output: {
    path: path.resolve(__dirname, "./dist"),
    filename: "bundle.js",
  },
  module: {
    rules: [
      {
        oneOf: [
          {
            test: /\.wasm$/,
            type: "javascript/auto",
            use: { loader: "file-loader" },
          },
          {
            test: /\.js$/,
            include: path.resolve(__dirname, "./src"),
            use: {
              loader: "babel-loader",
            },
          },
          {
            test: /\.css$/,
            use: [MiniCssExtractPlugin.loader, "css-loader"],
          },
        ],
      },
    ],
  },
  node: false,
  plugins: [
    new CleanWebpackPlugin(),
    new webpack.DefinePlugin({ IS_BROWSER: true }),
    new MiniCssExtractPlugin({
      filename: "[name].css",
      chunkFilename: "[id].css",
    }),
    new HtmlWebPackPlugin({
      template: "!!prerender-loader?string!src/index.html",
      minify: {
        collapseWhitespace: true,
        removeComments: true,
        removeRedundantAttributes: true,
        removeScriptTypeAttributes: true,
        removeStyleLinkTypeAttributes: true,
      },
    }),
  ],
};