const common = require("./webpack.config.common.js"); const merge = require("webpack-merge"); const UglifyJS = require("uglifyjs-webpack-plugin"); const webpack = require("webpack"); module.exports = merge(common, { devtool: "source-map", plugins: [ new UglifyJS({ sourceMap: true }), new webpack.DefinePlugin({ "process.env.NODE_ENV": JSON.stringify("production") }) ] });