webpack.config.js

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

module.exports = {
  entry: './src/index',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'build')
  },
  module: {
    rules: [{
      test: /\.js$/,
      use: ['babel-loader'],
      exclude: /node_modules/
    }]
  },
  externals: {
    "react":"react",
    "react-native":"react-native",
    "react-native-vector-icons/MaterialIcons":"react-native-vector-icons/MaterialIcons",
    "react-native-vector-icons/FontAwesome":"react-native-vector-icons/FontAwesome",
    "react-native-vector-icons/Zocial":"react-native-vector-icons/Zocial",
    "react-native-vector-icons/Octicons":"react-native-vector-icons/Octicons",
    "react-native-vector-icons/MaterialCommunityIcons":"react-native-vector-icons/MaterialCommunityIcons",
    "react-native-vector-icons/Foundation":"react-native-vector-icons/Foundation",
    "react-native-vector-icons/SimpleLineIcons":"react-native-vector-icons/SimpleLineIcons",
    "react-native-vector-icons/EvilIcons":"react-native-vector-icons/EvilIcons",
    "react-native-vector-icons/Entypo":"react-native-vector-icons/Entypo",
    "react-native-vector-icons/Ionicons":"react-native-vector-icons/Ionicons",
    "react-native-side-menu":"react-native-side-menu",
    "react-native-tab-navigator":"react-native-tab-navigator",
  },
  plugins: [
    new webpack.optimize.UglifyJsPlugin()
  ]
};