module.exports = { presets: [ '@babel/preset-react', '@babel/preset-flow', ['@babel/preset-env'] ], plugins: [ '@babel/plugin-syntax-dynamic-import', '@babel/plugin-proposal-function-bind', '@babel/plugin-proposal-class-properties', [ '@babel/plugin-transform-runtime', { corejs: 3 } ], ['react-intl', { messagesDir: './dist/messages/' }] ], env: { webpack: { presets: [ [ '@babel/preset-env', { modules: false, useBuiltIns: 'usage', // or "entry" corejs: 3 } ] ] }, development: { presets: [] }, test: { presets: [] } } };