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Ironically this is the only JavaScript change (except for top level await) I did not include, maybe I'll edit it and add it.

Those are 2 of the most significant (and eagerly awaited) new(er) features though (although I thought BigInt was more like 5-6 years old)

edit: Edge and Safari only added support in 2020, so it has only been useable without polyfills for a few years

I added them now so the article is complete.