webpack.config.js

const InlineChunkHtmlPlugin = require("react-dev-utils/InlineChunkHtmlPlugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");

const path = require("path");
const webpack = require("webpack");

module.exports = (__, argv) => ({
  mode: argv.mode === "production" ? "production" : "development",

  devtool: argv.mode === "production" ? false : "inline-source-map",

  entry: {
    ui: "./src/ui.tsx",
    code: "./src/code.ts",
  },

  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: "ts-loader",
        exclude: /node_modules/,
      },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"],
      },
      {
        test: /\.svg/,
        type: "asset/inline",
      },
      {
        test: /\.s[ac]ss$/i,
        use: ["style-loader", "css-loader", "sass-loader"],
      },
    ],
  },
  resolve: { extensions: [".tsx", ".ts", ".jsx", ".js", ".scss"] },
  output: {
    filename: "[name].js",
    path: path.resolve(__dirname, "dist"),
  },
  plugins: [
    new webpack.DefinePlugin({
      global: {},
    }),
    new HtmlWebpackPlugin({
      inject: "body",
      template: "./src/ui.html",
      filename: "ui.html",
      chunks: ["ui"],
    }),
    new InlineChunkHtmlPlugin(HtmlWebpackPlugin, [/ui/]),
  ],
});