webpack.prod.config.js

var path = require('path');
var webpack = require('webpack');

module.exports = {
    devtool: 'cheap-module-source-map',
    entry: [
        './src/scripts/index'
    ],
    output: {
        path: path.join(__dirname, 'dist'),
        filename: 'bundle.js',
        publicPath: '/'
    },
    plugins: [
        new webpack.optimize.OccurenceOrderPlugin(),
        new webpack.optimize.UglifyJsPlugin({
            compressor: {
                warnings: false,
                screw_ie8: true
            }
        }),
        new webpack.DefinePlugin({
            'process.env': {
                'NODE_ENV': JSON.stringify('production')
            }
        })
    ],
    module: {
        loaders: [{
            test: /\.js?$/,
            loaders: ['babel'],
            include: path.join(__dirname, 'src')
        }, {
            test: /\.scss$/,
            loaders: ['style-loader', 'css-loader', 'sass-loader']
        }]
    }
};