Go might be a contender save for a couple weird features. JS might be with a few ground rules and/or enough tooling.
I’m also willing to grant implicitly that there are tradeoffs here. Languages with small standard libraries usually have big community libraries and vice/versa.
JS isn't directly comparable due to the very delineated nature of ECMA -vs- DOM/NodeJS APIs - ECMA is pretty easy to internalise but you'd be hard pressed to get by without MDN DOM or NodeJS core API docs open (unless as you say you're abstracting them with community libs as you say).
I've only used Go sparingly - I heavily relied on docs, but yeah it may have a shallow learning curve. It's certainly much saner than Python (which seems to be the other language used in my "space" for e.g. ad hoc ops tooling, etc.)
I’m also willing to grant implicitly that there are tradeoffs here. Languages with small standard libraries usually have big community libraries and vice/versa.