These features are not transcoding content and have nothing to do with gulp. You only need to import 'babel-polyfill' in the code and install the babel-polyfill dependency through NPM to introduce API Polyfill implementations that are compatible with lower version browsers.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
These features are not transcoding content and have nothing to do with gulp. You only need to
import 'babel-polyfill'in the code and install thebabel-polyfilldependency through NPM to introduce API Polyfill implementations that are compatible with lower version browsers.