Babel preset for pofigizm projects npm i -SE babel-core babel-preset-pofigizm { "presets": "pofigizm" // default targets: { node: 'current' }} // or { "presets": [ [ "pofigizm", { "targets": { "chrome": 60 } } ] ]} // or { "presets": [ [ "pofigizm", { "library": true } ] ]}