webpack.config.js

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

module.exports = {
  devtool: 'eval',
  entry: [
    'webpack-dev-server/client?http://localhost:3000',
    'webpack/hot/only-dev-server',
    './src/index'
  ],
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'bundle.js',
    publicPath: '/dist/'
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new webpack.optimize.UglifyJsPlugin({
      compress: {
        warnings: false
      },
      mangle: {
        except: ['$super', '$', 'exports', 'require']
      }
    })
  ],
  module: {
    loaders: [{
      test: /\.js$/,
      loaders: ['react-hot', 'babel'],
      include: path.join(__dirname, 'src')
    }, {
      test: /\.css$/,
      loader: 'style-loader!css!'
    }, {
      test: /\.less$/,
      loader: 'style!css!less'
    }, {
      test: /\.(jpeg|jpg|png|gif|svg)$/i,
      loaders: [
        'file?hash=sha512&digest=hex&name=[hash].[ext]',
        'image-webpack?{progressive:true, optimizationLevel: 7, interlaced: false, pngquant:{quality: "65-90", speed: 4}}'
      ]
    },
      { test: /\.woff(2)?(\?v=[0-9]\.[0-9]\.[0-9])?$/, loader: "url-loader?limit=10000&mimetype=application/font-woff" },
      { test: /\.(ttf|eot|svg)(\?v=[0-9]\.[0-9]\.[0-9])?$/, loader: "file-loader" }
    ]
  }
};