Function findDOMNode

packages/react-dom/src/client/ReactDOMClientFB.js:111–115

(
  componentOrElement: component(...props: any),
)

  : flushSyncFromReconciler;

function findDOMNode(
  componentOrElement: component(...props: any),
): null | Element | Text {
  return findHostInstance(componentOrElement);
}

// Expose findDOMNode on internals
Internals.findDOMNode = findDOMNode;