const prod = process.env.NODE_ENV === 'production' module.exports = { mode: prod ? 'production' : 'development', output: { filename: 'maska.js', library: 'Maska', libraryTarget: 'umd', umdNamedDefine: true }, module: { rules: [ { test: /\.m?js$/, exclude: /(node_modules|bower_components)/, use: { loader: 'babel-loader', options: { presets: ['@babel/preset-env'] } } } ] } }