Function isTransformStream

lib/internal/streams/utils.js:99–106

(obj)

}

function isTransformStream(obj) {
  return !!(
    obj &&
    !isNodeStream(obj) &&
    typeof obj.readable === 'object' &&
    typeof obj.writable === 'object'
  );
}

function isWebStream(obj) {
  return isReadableStream(obj) || isWritableStream(obj) || isTransformStream(obj);