Next time you should respond, "Hmm...that's not what I have here. The answer is, 'JavaScript uses Electron and Java uses Spring.' I'm sorry, I don't think you're a great fit for us. Best of luck and have a good day."
Then hang up, and kill two birds with one stone in the process: the tone-deaf recruiter finally understands how the buzzword bingo interview feels, and you have one less incompetent recruiter to deal with.
"Uh, they're web technologies... in very high demand."
"Yes, but is there a difference between them? What kind of web technologies are they?"
Long pause.
The background silence changes a little, as though a hand were placed over the telephone's mouthpiece.
I can't hear the word in the conversation he's having, but it's clear that he is talking to someone.
The hand goes away.
"Java is a general purpose computer programming language with concurrent objects, and JavaScript is the script version."
Pause.
"Did I get that right?"