webpack.config.js

module.exports = {
  entry: [
    'babel-polyfill',
    './src/index.js'
  ],
  output: {
    filename: 'bundle.js',
    path: __dirname + '/dist'
  },

  // Enable sourcemaps for debugging webpack's output.
  // devtool: 'source-map',
  devtool: 'cheap-source-map',

  resolve: {
    // Add '.ts' and '.tsx' as resolvable extensions.
    extensions: ['.webpack.js', '.web.js', '.js']
  },

  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['es2015', 'stage-0']
          }
        }
      },
      {
        test: /\.(png|jpe?g|gif)$/,
        exclude: /node_modules/,
        use: [
          {
            loader: 'url-loader',
            options: {
              limit: 8192
            }
          }
        ]
      }
    ]
  },
};