webpack.config.js

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

module.exports = {
    cache: true,
    devtool: 'source-map',
    entry: {
        main: [
            './src/client/main.js'
        ]
    },
    mode: 'production',
    output: {
        path: path.join(__dirname, '/public/') ,
        filename: '[name].js',
        chunkFilename: '[id].js',
        sourceMapFilename: '[name].map'
    },
    module: {
        rules: [
            { test: /\.js$/, exclude: /node_modules/, use: [
                { loader: 'babel-loader',
                    options: {
                        minified: true,
                        compact: true,
                        sourceMaps: 'inline',
                    }
                }
            ]},
            // required to write "require('./style.scss')"
            { test: /\.scss$/, use: [
                { loader: 'style-loader' },
                { loader: 'css-loader' },
                { loader: 'sass-loader' }
            ]},
            { test: /\.css$/,  use: [
                { loader: 'style-loader' },
                { loader: 'css-loader' }
            ]}
        ]
    },
    plugins: [
        new webpack.LoaderOptionsPlugin({
            debug: true
        })
        // new webpack.optimize.CommonsChunkPlugin({
        //     name: "vendor",
        //     filename: "vendor.js"
        // }),
    ]
};