webpack.prod.config.js

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

module.exports = {
  devtool: 'source-map',
  entry: ['./src/index'],
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'bundle.js',
    publicPath: '/'
  },
  plugins: [
    new webpack.optimize.UglifyJsPlugin({
      minimize: true,
      compress: {
        warnings: false
      }
    }),
    new webpack.DefinePlugin({
      'process.env': {
        'NODE_ENV': JSON.stringify('production')
      }
    })
  ],
  module: {
    loaders: [
      {
        test: /\.jsx?$/,
        exclude: /node_modules/,
        loader: 'babel',
      },
      {
        test: /\.json$/,
        loader: 'json'
      },
      {
        test   : /\.woff|\.woff2|\.svg|.eot|\.ttf/,
        loader : 'url?prefix=font/&limit=10000'
      },
      {
        test: /\.s?css$/,
        loader: 'style!css!sass'
      },
      {
        test: /\.png/,
        loader: 'url-loader?limit=100000&minetype=image/png'
      },
      {
        test: /\.jpg/,
        loader: 'file-loader'
      }
    ]
  }
}