{ "presets": [ ["@babel/preset-env", { "modules": false, "loose": true, "targets": { "browsers": ["ie 11"] } }], "@babel/preset-react", "@babel/preset-stage-0" ], "env": { "development": { "plugins": ["react-hot-loader/babel"] }, "test": { "plugins": ["@babel/plugin-transform-modules-commonjs"] }, "production": { "plugins": [ "@babel/plugin-transform-react-inline-elements", "@babel/plugin-transform-react-constant-elements" ] } } }