build/web/c0.js
function findParent(node) {
  // TODO: It may be a good idea to cache this to prevent unnecessary DOM
  // traversal, but caching is difficult to do correctly without using a
  // mutation observer to listen for all DOM changes.
  var nodeID = ReactMount.getID(node);
  var rootID = ReactInstanceHandles.getReactRootIDFromNodeID(nodeID);
  var container = ReactMount.findReactContainerForID(rootID);
  var parent = ReactMount.getFirstReactDOM(container);
  return parent;
}
function findParent(node) {
  // TODO: It may be a good idea to cache this to prevent unnecessary DOM
  // traversal, but caching is difficult to do correctly without using a
  // mutation observer to listen for all DOM changes.
  var nodeID = ReactMount.getID(node);
  var rootID = ReactInstanceHandles.getReactRootIDFromNodeID(nodeID);
  var container = ReactMount.findReactContainerForID(rootID);
  var parent = ReactMount.getFirstReactDOM(container);
  return parent;
}
function findParent ( node ) { // TODO: It may be a good idea to cache this to prevent unnecessary DOM // traversal, but caching is difficult to do correctly without using a // mutation observer to listen for all DOM changes. var nodeID = ReactMount . getID ( node ) ; var rootID = ReactInstanceHandles . getReactRootIDFromNodeID ( nodeID ) ; var container = ReactMount . findReactContainerForID ( rootID ) ; var parent = ReactMount . getFirstReactDOM ( container ) ; return parent ; }
Finds the parent React component of `node`.

@param {*} node
@return {?DOMEventTarget} Parent container, or `null` if the specified node
is not nested.
Finds the parent React component of node .