webpack.config.js

const MiniCssExtractPlugin = require("mini-css-extract-plugin");

const mode = process.env.NODE_ENV || "development";
const prod = mode === "production";

module.exports = {
  entry: {
    bundle: ["./frontend/main.js"]
  },
  resolve: {
    extensions: [".mjs", ".js", ".svelte"]
  },
  output: {
    path: __dirname + "/public",
    filename: "[name].js",
    chunkFilename: "[name].[id].js"
  },
  module: {
    rules: [
      {
        test: /\.svelte$/,
        exclude: /node_modules/,
        use: {
          loader: "svelte-loader",
          options: {
            emitCss: true,
            hotReload: true
          }
        }
      },
      // {
      //   test: /\.wasm$/,
      //   use: {
      //     loader: "wasm-loader"
      //   }
      // },
      {
        test: /\.css$/,
        use: [
          /**
           * MiniCssExtractPlugin doesn't support HMR.
           * For developing, use 'style-loader' instead.
           * */
          prod ? MiniCssExtractPlugin.loader : "style-loader",
          "css-loader"
        ]
      }
    ]
  },
  mode,
  plugins: [
    new MiniCssExtractPlugin({
      filename: "[name].css"
    })
  ],
  devtool: prod ? false : "source-map"
};