{ "env": { "ui": { "presets": [ "react", ["env",{ "targets": { "browsers": [ "last 5 versions", "FireFox >= 44", "Safari >= 7", "Explorer 11", "last 4 Edge versions" ], "loose": true } }], "stage-2", "stage-3" ], "plugins": [ "react-hot-loader/babel", "transform-runtime", "transform-object-rest-spread", "transform-decorators-legacy" ] }, "test": { "presets": [["env", { "targets": { "node": "6.10" } }], "flow", "react"], "plugins": [ "transform-class-properties", "transform-object-rest-spread" ] }, "testE2E": { /** for an issue on puppeteer env we need to use es2015-node4 **/ "presets": [ "es2015-node4", "flow"], "plugins": [ "transform-class-properties", "transform-object-rest-spread" ] }, "registry": { "presets": [ ["env", { "targets": { "node": "6.10" } }], "stage-3", "flow"], "plugins": [ "transform-object-rest-spread", "transform-class-properties" ] }, "registry-docker": { "presets": [ ["env", { "targets": { "node": "9" } }], "flow"] }, "development": { "presets": ["flow"], "plugins": ["flow-runtime"] } } }