Implement filter as a Transform stream to fix piping #77
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On Node
14.16.0
, and presumably later, thefilter
implementation never completes when piped to a subsequent stream such asstringify
. I have added a test for this in the first commit.Changing the filter implementation from a Duplex stream to a Transform stream fixes this issue.
I'm not sure whether this used to work in older versions of Node.js. Based on this issue it looks like something might have changed in the internal streams implementation in Node
14.1.0
.