Function getEventTargetDocument

docs/external/js/react-dom.development.js:9761–9763

* Get document associated with the event target. * * @param {object} nativeEventTarget * @return {Document}

(eventTarget)

  function getEventTargetDocument(eventTarget) {
    return eventTarget.window === eventTarget ? eventTarget.document : eventTarget.nodeType === DOCUMENT_NODE ? eventTarget : eventTarget.ownerDocument;
  }
  /**
   * Poll selection to see whether it's changed.
   *