webpack.hot.js

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

module.exports = {
  devtool: 'cheap-module-eval-source-map',
  entry: [
    'webpack-hot-middleware/client',
    './index'
  ],
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'bundle.js',
    publicPath: '/dist/'
  },
  resolve: {
    extensions: ["", ".ts", ".tsx", ".js"]
  },
  plugins: [
    new webpack.optimize.OccurrenceOrderPlugin(),
    new webpack.HotModuleReplacementPlugin()
  ],
  module: {
    loaders: [
      {
        test: /\.tsx?$/,
        loaders: [ 'ts-loader' ],
        exclude: /node_modules/,
        include: __dirname
      },
      {
        test: /\.css?$/,
        loaders: [ 'style', 'raw' ],
        include: __dirname
      }
    ],
    preLoaders: [
      {
        test: /\.js$/,
        loader: "source-map-loader"
      }
    ]
  }
}