webpack.config.js

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

module.exports = {
  entry: {
    index: "./src/index.ts",
  },
  node: false,
  output: {
    libraryTarget: "amd",
    path: path.resolve(__dirname, "build"),
    filename: "js/[name].js",
    publicPath: "",
  },
  devServer: {
    static: path.join(__dirname, "dist"),
    compress: true,
    port: 3001,
  },
  externals: [/^esri\/.*/, /^app\/.*/],
  module: {
    rules: [
      {
        test: /\.ejs$/,
        loader: "ejs-loader",
        options: {
          esModule: false,
        },
      },
      {
        test: /\.tsx?$/,
        loader: "ts-loader",
        options: {
          transpileOnly: true,
        },
        exclude: /node_modules/,
      },
      {
        test: /\.css$/,
        use: [MiniCssExtractPlugin.loader, "css-loader"],
      },
    ],
  },
  plugins: [
    new CleanWebpackPlugin({
      cleanOnceBeforeBuildPatterns: ["**/*", "!.git/**"],
    }),
    new HtmlWebpackPlugin({
      title: "Smart City",
      template: "./src/layout.js",
      filename: "index.html",
      entry: "index",
      chunks: ["index"],
      chunksSortMode: "none",
      inject: false,
    }),
    new MiniCssExtractPlugin({
      filename: "[name]/style.[chunkhash].css",
      chunkFilename: "[id].css",
    }),
    new CopyWebpackPlugin({
      patterns: [
        {
          from: "./src/assets",
          to: "./",
        },
      ],
    }),
  ],
  resolve: {
    alias: {
      react: path.resolve("./node_modules/react"),
      "react-dom": path.resolve("./node_modules/react-dom"),
    },
    extensions: [".ts", ".tsx", ".js"],
  },
};