I’d like to see a basic grounding in computer science for everyone in the industry, to be honest, as well as basic command line skills — especially for Linux (tangentially macOS) as that’s where most development takes place.
(Don’t mention Windows, that’ll be Linux in a few years anyway)
At a basic level you’ll be require to understand data structures, what they are, use cases, and suchlike. I’m not interested in people who just blindly call functions — you don’t have to know exactly what’s behind them, but I’d like to know at least you understand what they do if not how. Know what I mean?
Once they have that, perhaps dig a bit deeper into how problems would be approached in a specific language, or maybe discuss a better language, that kind of thing.
If you’re using JavaScript for anything serious in the backend, for example, then you’re just doing it wrong. I’d even like to see it removed from the frontend to be honest, and get a proper language in there!
(I’m utterly convinced that the only people working in Java right now are the ones reverse engineering and rewriting (in C++, Rust, Swift, or as a last resort, Python) the gigabytes of pattern based object riddled garbage created decades ago when it was viewed as a ‘good idea’.)