var config = { entry: './src/index', mode: 'production', module: { rules: [ { test: /\.js$/, use: [ 'babel-loader' ], exclude: /node_modules/ } ] }, output: { library: 'ConnectedReactRouter', libraryTarget: 'umd' } } if (process.env.NODE_ENV === 'production') { config.optimization = { minimize: true } } module.exports = config