webpack.config.js

const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = (env, argv) => {
  const isProduction = argv.mode === 'production';
  
  return {
    mode: isProduction ? 'production' : 'development',
    entry: './src/index.tsx',
    module: {
      rules: [
        {
          test: /\.(ts|tsx)$/,
          exclude: /node_modules/,
          use: {
            loader: 'babel-loader',
            options: {
              presets: ['@babel/preset-env', '@babel/preset-react', '@babel/preset-typescript'],
            }
          },
        },
        {
          test: /\.css$/i,
          use: ['style-loader', 'css-loader'],
        },
      ],
    },
    resolve: {
      extensions: ['.tsx', '.ts', '.js'],
    },
    output: {
      filename: 'bundle.js',
      path: __dirname + '/dist',
    },
    devServer: {
      static: './dist',
    },
    plugins: [
      new HtmlWebpackPlugin({
        template: './public/index.html',
      }),
    ],
  };
};