Symbol), make sure you are including the appropriate polyfills manually, or that the browsers you are targeting already support them.
browserslistconfiguration in your
package.jsonfile to target a broad range of browsers based on global usage (
> 0.2%) for production builds, and modern browsers for development. This gives a good development experience, especially when using language features such as async/await, but still provides high compatibility with many browsers in production.
productionlist will be used when creating a production build by running the
buildscript, and the
developmentlist will be used when running the
startscript. You can use https://browserl.ist to see the browsers supported by your configured
browserslistthat is specified in