Where do you test for the UNDEF that ->dequeue_nb returns when it hits the end of the queue?

To quote Thread::Queue
"dequeue_nb The dequeue_nb method, like the dequeue method, removes a scalar from the head of the queue and returns it. Unlike dequeue, though, dequeue_nb won't block if the queue is empty, instead returning undef. "
"No matter where you go, there you are." BB

In reply to Re: Hanging Threads by Ninthwave
in thread Hanging Threads by WalkingZero

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