webpack.build.config.js

const path = require('path');
const ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin');
const ESLintPlugin = require('eslint-webpack-plugin');

module.exports = {
  entry: './src/index.ts',
  devtool: 'source-map',
  plugins: [
    new ESLintPlugin({
      extensions: ['ts', 'tsx'],
    }),
    new ForkTsCheckerWebpackPlugin(),
  ],
  module: {
    rules: [
      {
        test: /\.(t|j)sx?$/,
        use: 'babel-loader',
        exclude: /node_modules/,
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader'],
      },
    ],
  },
  resolve: {
      extensions: ['.tsx', '.ts', '.js', 'jsx'],
      fallback: { "url": require.resolve("url/") },
  },
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'index.js',
    publicPath: '/dist/',
    library: {
        type: 'commonjs2',
    }
  },
  externals: {
    "react": "react",
  }
};