> hasn't been the case for years

For 10 years, actually. ES6 - otherwise known as ECMAScript 2015 - did in fact come out 10 years ago.

- https://en.wikipedia.org/wiki/ECMAScript_version_history#6th...

It truly did improve the JS landscape by an order of magnitude.

For those unfamiliar with the extensive features this brought to JS, here is a good list:

- https://rse.github.io/es6-features/

ES6 modules make it straightforward to reform great piles of unstructured JS hackery into hierarchical dependency-controlled units for which you can actually reliably draw a block diagram. Hmm, or maybe get Claude to draw it for you ...

Ah, I stand corrected. I have more recent examples but I struggle to recall them. Map and Set were certainly the two largest absences I remember.

Yeah, those were two big sticking points.

There's also Object.groupBy() now which was another thing I always missed from the standard library.

Proposals tend to get adopted at a snail's place but it's neat to see what's coming down the pike: https://github.com/tc39/proposals

Worth noting that those features were indeed added after the creation of e.g. React, but both have been widely available for ~10 years now.