react-native-web/packages/benchmarks/webpack.config.js

const babelPreset = require('../../scripts/babel/preset');
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
const path = require('path');
const webpack = require('webpack');

const appDirectory = path.resolve(__dirname);

module.exports = {
  context: __dirname,
  entry: './src/index',
  output: {
    path: path.resolve(appDirectory, 'dist'),
    filename: 'bundle.js'
  },
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          'style-loader',
          {
            loader: 'css-loader',
            options: { module: true, localIdentName: '[hash:base64:8]' }
          }
        ]
      },
      {
        test: /\.js$/,
        include: [path.resolve(appDirectory, 'src')],
        use: {
          loader: 'babel-loader',
          options: {
            cacheDirectory: false,
            presets: babelPreset,
            plugins: ['react-native-web', 'styled-jsx/babel']
          }
        }
      }
    ]
  },
  plugins: [
    new BundleAnalyzerPlugin({
      analyzerMode: 'static',
      openAnalyzer: false
    }),
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify('production')
    }),
    new webpack.optimize.UglifyJsPlugin({
      compress: {
        dead_code: true,
        drop_console: false,
        screw_ie8: true,
        warnings: false
      }
    })
  ]
};