I mentioned Fade in another post, and the array stuff was one of the few bits I wondered how he implemented… It’s not JS though, it looks like he invented his own language.
I’ve actually been trying to figure out all of the possible ways to write an LED pattern (let’s limit it to ESP32/8266 for now)
JS: Pixelblaze, Moddable and so on… (PB is far and away the winner)
C: FastLED, and related options (WLED, etc etc)
Python: Micro or Circuitpython - libraries to do ws2812 and so on. Even FastLED compatible functions in some cases (and not in others)
Homebrew: I’d put Fade in that realm… Not hugely interested, as one of the advantages of language compatibility is that you leverage code from others. So while someone could add LED control to DOS running on an Esp32 (yup it exists) , I’m not hugely interested.
If you outsource the logic/etc,so that a Pi/PC sends the signals and just send to a esp controller via E1.31/etc, then that’s another category, and beyond the scope here. Processing would fall into that, for example.
Anything besides the above any of you have seen?