The best time to add a decent standard library was 10 years ago. The second best is today.
Shipping a decent set of core libraries would do wonders for package sizes. You could cover a lot of use cases with a relatively small API surface area (the classic 80/20 rule) and you'd find that a lot of duplication in implementing the fundamentals in third party packages would just go away.
Browsers update pretty quickly now, anyway. It's likely that in the future we will see most sites using a lightweight package for modern browsers and a heavy polyfill for IE, which is fine by me.
Shipping a decent set of core libraries would do wonders for package sizes. You could cover a lot of use cases with a relatively small API surface area (the classic 80/20 rule) and you'd find that a lot of duplication in implementing the fundamentals in third party packages would just go away.
Browsers update pretty quickly now, anyway. It's likely that in the future we will see most sites using a lightweight package for modern browsers and a heavy polyfill for IE, which is fine by me.