If you are a developer, what is the last significant thing you learned, and when did you learn it?
1. Network -> Select Request -> "copy as fetch".
2. Then paste the fetch() statement in the JS console, and look at the network tab for results...
Pretty easy and handy for replaying random requests during development.
I'm closer to 60 than 50 years of age and am closing in on 40 years of professional software development experience. I like to think I can still learn new tricks.
I'm currently into learning how computer audio works. Learning to program things like mono -> stereo conversion, panning the audio, normalizing, generating binary sound files,..
Currently going through a book (The Audio Programming Book) for all of this, doing it in C and then trying to make my own version in Go.
The reason I say "define significant" is because these are all new skills I am acquiring - but I'm doing so just for the fun of it. It's not something I had to learn for my job.
Less significant: application locking with redis (redlock) last month. I've had a picture of it from long, but I'm surprised how neat and stable redlock is designed.