@kyozou @DrewKadel Well, it is usually correct for questions that are common on the Internet.
Today I pasted it some data definition and asked to implement a simple filtering in Javascript. I could have looked it up in five minutes. But it generated something that worked (with my particular data) in five seconds. I asked a follow-up request "write this in functional style", and it did. I generally know Javascript, but it used an API method that I didn't know about.