monaco-editor/browser-esm-webpack-typescript-react/webpack.config.js

const path = require("path");
const HtmlWebPackPlugin = require("html-webpack-plugin");
const ReactRefreshWebpackPlugin = require('@pmmmwh/react-refresh-webpack-plugin');

const isDevelopment = process.env.NODE_ENV !== 'production';

module.exports = {
  mode: "development",
  entry: {
    app: "./src/index.tsx",
    "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"
  },
  devServer: {
    hot: true
  },
  resolve: {
    extensions: ['*', '.js', '.jsx', '.tsx', '.ts']
  },
  output: {
    globalObject: "self",
    filename: "[name].bundle.js",
    path: path.resolve(__dirname, "dist")
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx|tsx|ts)$/,
        exclude: /node_modules/,
        use: [
          {
            loader: require.resolve('babel-loader'),
            options: {
              presets: [
                "@babel/preset-env",
                "@babel/preset-typescript",
                "@babel/preset-react"
              ],
              plugins: [isDevelopment && require.resolve('react-refresh/babel')].filter(Boolean),
            }
          }
        ]
       },
      {
        test: /\.css$/,
        use: ["style-loader", "css-loader"]
      },
      {
        test: /\.ttf$/,
        use: ['file-loader']
      }
    ]
  },
  plugins: [
    new HtmlWebPackPlugin({
      template: 'src/index.html'
    }),
    isDevelopment && new ReactRefreshWebpackPlugin(),
  ].filter(Boolean)

};