JS's standard library is smaller than Python's for sure. I... want to say Rust's standard library is as well, but the traits that are present tend to have a looooooot of methods (check out all the methods on Result!).

Python has a lot of things in the standard library, though I think the tendancy has been to stop adding things (case in point: I believe there is very little argument against putting requests into the standard library. I get why they don't but I disagree with the reasoning)