Since it's too late to edit: nope, that won't work for Go maps, because it only shuffles elements already visited, so bailing out of the loop early guarantees t

Since it's too late to edit: nope, that won't work for Go maps, because it only shuffles elements already visited, so bailing out of the loop early guarantees the first N elements will be the same N elements that have been iterated over up until that point. Which breaks the randomness guarantee. OTOH, that actually is kind of an interesting feature; there might be a few situations where that is desired behavior.