[jamesponddotco]

As a software engineer, probably JavaScript, as I focus on back-end and don’t have many front-end skills aside from a good hand at design.

In general, though, since I believe I’ll lose my job to AI, I’d like to learn and become an electrician.

[sn9]

executeprogram is excellent for picking up JS/TS. Not necessarily front end, but the language.

Frontend Masters might be worth checking out.

[Rendello]

I only did Execute Program for a little bit and don't remember much, but the developer's Destroy All Software screencasts are what taught me how to write parsers. I must have rewatched that video 30 times while I was writing my first one.