webpack.config.js

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

module.exports = {
    mode: "development",
    plugins: [
      // http://stackoverflow.com/questions/29080148/expose-jquery-to-real-window-object-with-webpack
      new webpack.ProvidePlugin({
        // Automtically detect jQuery and $ as free var in modules
        // and inject the jquery library
        // This is required by many jquery plugins
        jquery: "jquery",
        jQuery: "jquery",
        $: "jquery"
      }),
    ],
    target: "web",
    entry: {
        engine: "./src/engine.js",
        tests: "./tests/index.js",
    },
    devtool: "nosources-source-map",
    output: {
        path: path.resolve(__dirname, "dist"),
        filename: "[name].bundle.js",
        devtoolModuleFilenameTemplate: "[id]"
    },
    module: {
        rules: [
/*            {
                test: /\.css$/,
                use: "style!css"
            }*/
        ]
    },
    optimization: {
        removeAvailableModules: true,
        removeEmptyChunks: true,
        mergeDuplicateChunks: true,
        flagIncludedChunks: true,
        occurrenceOrder: true,
        sideEffects: true,
        providedExports: false,
        usedExports: false,
        concatenateModules: false,
        namedModules: false,
        namedChunks: false,
        minimize: false,
        portableRecords: true
    },
    devServer: {
        publicPath: "/dist",
    }
};