Hey @spazzle,
For arrays as lists of functions, check out the “Example:” series that ships with Pixelblaze. There’s a bit more comments on the v3 ones. Example: Modes and Waveforms.
To see something similar where we store different renderer functions in the array instead of just hue or brightness functions, check out zranger1’s Multisegment (admittedly not the shortest possible example), or the shorter Shimmer Crossfade 2D in the Pattern library (page 3, or DL here).
Any other techniques you are wondering about finding examples for? I’d love to start a list as a possible TOC for an intro.
@Scruffynerf In the past, I recommended this subset of Codecademy’s Intro to JS to someone.