webpack-dev-server.config.js

const webpack = require('webpack');
const path = require('path');
const buildPath = path.resolve(__dirname, 'build');
const nodeModulesPath = path.resolve(__dirname, 'node_modules');

const config = {
  // Entry points to the project
  entry: [
    'webpack/hot/dev-server',
    'webpack/hot/only-dev-server',
    path.join(__dirname, '/example/main.js'),
  ],
  // Server Configuration options
  devServer: {
    contentBase: '.', // Relative directory for base of server
    devtool: 'cheap-module-source-map',
    hot: true, // Live-reload
    inline: true,
    port: 8090, // Port Number
    host: 'localhost', // Change to '0.0.0.0' for external facing server
  },
  devtool: 'cheap-module-source-map',
  output: {
    path: buildPath, // Path of output file
    filename: '/dist/ReactTags.min.js',
    // libraryTarge: 'umd',
    // library: 'ReactTags'
  },
  // externals: {
  //   'react': 'React',
  //   'react-dom': 'ReactDOM',
  //   'react-dnd': 'ReactDnD'
  // },
  plugins: [
    // Enables Hot Modules Replacement
    new webpack.HotModuleReplacementPlugin(),
    // Allows error warnings but does not stop compiling.
    new webpack.NoErrorsPlugin(),
  ],
  module: {
    loaders: [
      {
        test: /\.js$/, // All .js files
        loaders: ['babel-loader'],
        exclude: [nodeModulesPath],
      },
    ],
  },
};

module.exports = config;