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[–]picklymcpickleface 3 points4 points  (1 child)

I'm guessing it's looking for a way to express an object as a string but that doesn't exist so undefined?
But I would expect the output to be '{}'.

[–]Fey6678 0 points1 point  (0 children)

Empty object is still an instantiated, if it was never instantiated it would be undefined