webpack.config.js

module.exports = {
  cache: true,
  devtool: 'source-map',
  entry: './app/assets/js/main.js',
  output: {
      filename: './target/web/public/main/js/bundle.js'
    },
  resolve: {
      extensions: ['', '.js', '.sjs'],
      fallback: __dirname
    },
  module: {
      loaders: [
            {
              test: /\.js?$/,
              exclude: /(node-modules|webjars|node_modules|bower_components)/,
              loader: 'babel'
            }
          ]
    }
};