webpack.config.js

const path = require("path");

const CopyPlugin = require("copy-webpack-plugin");
const HtmlWebpackPlugin = require("html-webpack-plugin");

module.exports = {
  mode: "development",
  entry: {
    bundle: path.resolve(__dirname, "src/index.ts"),
  },
  output: {
    filename: "[name].js",
    path: path.resolve(__dirname, "build"),
    clean: true,
  },
  resolve: {
    extensions: [".tsx", ".ts", ".js"],
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: "ts-loader",
        exclude: /node_modules/,
      },
    ],
  },
  plugins: [
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, "assets"),
          to: "assets",
        },
        {
          from: path.resolve(__dirname, "public"),
          to: "",
          globOptions: {
            ignore: ["**/template.html"],
          },
        },
      ],
    }),
    new HtmlWebpackPlugin({
      filename: "index.html",
      template: path.resolve(__dirname, "public/template.html"),
    }),
  ],
  devServer: {
    open: true,
  },
};