Importing core-js doesn't seem to polyfill anything

[Dorious]

I'm trying to polyfill .at and it doesn't seem to work import 'core-js/stable/array/at'; and Array.prototype.at is still undefined.

Anybody had this issue?

[niksauer]

I believe this is related to https://github.com/facebook/create-react-app/issues/8779. We fixed this via export * from 'core-js/stable/array/at';

[Nantris]

Thanks so much @niksauer, I was pulling my hair out.

[Ryuurock]

+11111111111111111111111111111111