webpack.config.dist.js

const path = require('path');
const webpack = require('webpack');

module.exports = {
  devtool: 'cheap-module-source-map',
  entry: ['./src/index.js'],
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'fb-pixel.js',
    libraryTarget: 'umd',
    library: 'ReactPixel',
  },
  module: {
    rules: [
      {
        use: 'babel-loader',
        test: /\.js$/,
        exclude: /node_modules/,
      },
    ],
  },
  resolve: {
    extensions: ['.js'],
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: JSON.stringify('production'),
      },
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true,
      debug: false,
    }),
    new webpack.optimize.AggressiveMergingPlugin(),
  ],
};