webpack.config.dev.js

var ExtractTextPlugin = require('extract-text-webpack-plugin');
var webpack = require('webpack');
var path = require('path');

module.exports = {
  entry: [
    'webpack-dev-server/client?http://0.0.0.0:3000',
    'webpack/hot/only-dev-server',
    path.join(__dirname, 'example/src/index.jsx')
  ],
  output: {
    path: path.join(__dirname, 'example/assets'),
    filename: 'bundle.js',
    publicPath: '/assets/'
  },
  module: {
    loaders: [
      {
        test: /\.jsx?$/,
        loaders: [
          'react-hot',
          'babel',
        ],
        include: path.join(__dirname),
        exclude: [
          /node_modules/
        ]
      },
      {
        test: /\.css$/,
        loader: ExtractTextPlugin.extract('style', 'css'),
        include: path.join(__dirname),
      },
    ],
  },
   resolve: {
    extensions: ['', '.js', '.jsx'],
  },
  plugins: [
    new webpack.HotModuleReplacementPlugin(),
    new ExtractTextPlugin('bundle.css'),
  ],
};