A simple starter configuration file for webpack

webpack.config.js

var debug = process.env.NODE_ENV !== "production";
var webpack = require('webpack');

module.exports = {
  context: __dirname,
  devtool: debug ? "eval-source-map" : null,
  entry: "./js/scripts.js",
  output: {
    path: __dirname + "/js",
    filename: debug ? "bundle.js" : "bundle.min.js"
  },
  module: {
    loaders: [
      {
        test: /\.jsx?$/,
        exclude: /(node_modules|bower_components)/,
        loader: 'babel', // 'babel-loader' is also a legal name to reference
        query: {
          presets: ['react', 'es2015', 'stage-1']
       }
      }
    ]
  },
  plugins: debug ? [] : [
    new webpack.optimize.DedupePlugin(),
    new webpack.optimize.OccurenceOrderPlugin(),
    new webpack.optimize.UglifyJsPlugin({ mangle: false, sourcemap: false }),
  ],
};