Stupid question: so it's not Randall Munroe who's making XKCDs such as Pixels of Time?
Um... he interned at NASA and worked for them for six months after graduating as an independent roboticist contractor. He's been working on xkcd professionally, full time, for 8 years since then.
Plenty of time to learn javascript.
The post I was responding to suggested "Since he is a rocket scientist, it is unlikely that he would be able to code the frontend, and would require help", which is absurd. Given Mr. Munroes obvious interest in programming and computers, (see comics:
https://airbrake.io/blog/internet/best-programming-xkcd-comi...
) it was entirely reasonable to believe that he had picked up enough experience to code the javascript frontends.
There is simply no reason to pigeon hole the man as a "Rocket Scientist", especially given the fact he was a roboticist previously (which, shockingly enough, tends to involve programming). He has shown a wide variety of interests, and if he demonstrated an ability to code frontend javascript, I would not be surprised.
Is there an xkcd team as such? It would be good to read a bit more about them, if there's any info available.