Sample Basic Webpack Config

webpack.config.js

//public/asset/js
//client.js
//client.min.js

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

module.exports = {
    context: __dirname + "/public",
    devtool: debug ? "inline-sourcemap" : null,
    entry: "./asset/js/client.js",
    module: {
        loaders: [
            {
                test: /\.js?$/,
                exclude: /(node_modules|bower_components)/,
                loader: 'babel-loader',
                query: {
                    presets: ['react', 'es2015', 'stage-0'],
                    plugins: [
                        'react-html-attrs',
                        'transform-class-properties',
                        'transform-decorators-legacy'
                    ]
                }
            }
        ]
    },
    output: {
      path: __dirname + "/public/asset/js/",
        filename: "client.min.js"
    },
    plugins: debug ? [] : [
        new webpack.optimize.DedupePlugin(),
        new webpack.optimize.OccurenceOrderPlugin(),
        new webpack.optimize.UglifyJsPlugin({ mangle: false, sourcemap: false }),
    ],
};