webpack.config.js

const HtmlWebPackPlugin = require("html-webpack-plugin");
const path = require("path");

module.exports = {
  mode: "development",
  entry: "./src/index.tsx",
  output: {
    path: path.resolve(__dirname),
    filename: "[name].js",
    publicPath: "/",
  },
  module: {
    rules: [
      {
        test: /\.(tsx|ts)$/,
        use: [
          {
            loader: "babel-loader",
            options: {
              presets: [
                "@babel/preset-env",
                "@babel/preset-react",
                "@babel/preset-typescript",
                "@emotion/babel-preset-css-prop",
              ],
              plugins: ["@babel/plugin-transform-runtime"],
            },
          },
        ],
        exclude: /node_modules/,
      },
    ],
  },
  resolve: {
    extensions: [".tsx", ".ts", ".js"],
    modules: [path.resolve(__dirname, "src"), "node_modules"],
  },
  plugins: [
    new HtmlWebPackPlugin({
      template: "./public/index.html",
      inject: true,
    }),
  ],
  //dev
  devServer: {
    compress: true,
    hot: true,
    port: 9000,
    historyApiFallback: true,
  },
  devtool: "eval-cheap-source-map",
};