Code samples. This is what’s missing most of the time. Even if you encounter esoteric jargon, if they give a few examples, it’s pretty easy to decipher. Even big companies like Google give code examples in multiple languages.
f←{⍸≠⌈\(⍴∘∪⊢∨⍳)¨⍳⍵}
Said in light-hearted jest, and not in sarcasm