webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const CleanWebpackPlugin = require("clean-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

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

module.exports = {
  mode: mode,
  optimization: {
    usedExports: true
  },
  entry: {
    app: "./src/index.ts",
    "editor.worker": "monaco-editor/esm/vs/editor/editor.worker.js",
    "json.worker": "monaco-editor/esm/vs/language/json/json.worker",
    "css.worker": "monaco-editor/esm/vs/language/css/css.worker",
    "html.worker": "monaco-editor/esm/vs/language/html/html.worker",
    "ts.worker": "monaco-editor/esm/vs/language/typescript/ts.worker"
  },
  devtool: "inline-source-map",
  devServer: {
    contentBase: "./dist"
  },
  output: {
    globalObject: "self",
    filename: "[name].bundle.js",
    path: path.resolve(__dirname, "dist"),
    publicPath: "/"
  },
  plugins: [
    new CleanWebpackPlugin(),
    new MiniCssExtractPlugin({
      // Options similar to the same options in webpackOptions.output
      // both options are optional
      filename: "[name].css",
      chunkFilename: "[id].css"
    }),
    new HtmlWebpackPlugin({
      title: "eb-editor",
      template: "./src/index.html",
      chunks: ["app"]
    })
  ],
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: "ts-loader",
        exclude: /node_modules/
      },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"]
      },
      {
        test: /\.scss$/,
        use: [
          mode !== "production" ? "style-loader" : MiniCssExtractPlugin.loader,
          "css-loader", // translates CSS into CommonJS
          {
            loader: "sass-loader",
            options: { implementation: require("dart-sass") }
          } // compiles Sass to CSS, using Node Sass by default
        ]
      },
      {
        test: /\.(png|svg|jpg|gif)$/,
        use: ["file-loader"]
      },
      {
        test: /\.(woff|woff2|eot|ttf|otf)$/,
        use: ["file-loader"]
      }
    ]
  },
  resolve: {
    extensions: [".tsx", ".ts", ".js"]
  }
};