All of the recommended solutions for this problem have roughly the same faulty line:
return targetSum - smallestDifference;
This assumes that the closest sum is LESS than the target. But what if the closest sum was GREATER than the target? Then this line would be returning the wrong sum. I know the prompt asks us to return the smallest closest sum, but I think that’s only if there’s a tie with a larger one. Am I crazy or did anyone else notice this?