{ "presets": [ [ "@babel/preset-env", { "targets": { "node": "current", "browsers": [ "Chrome >= 41", "FireFox >= 44", "Safari >= 7", "Explorer 11", "last 4 Edge versions" ] }, "useBuiltIns": false } ], "@babel/preset-react" ], "plugins": [ ], "ignore": [ "node_modules" ] }