How do I test if a stream has ended?

Question

I have a stream that may or may not have already ended. If it has ended, I don't want to sit there forever waiting for the end event. How do I check?

Answer 1

As of node 12.9.0, readable streams have a readableEnded property you can check – see readable.readableEnded in the Stream documentation.

(Writable streams have a corresponding property)