Function getInstanceFromNode

docs/lib/react.js:7397–7404

* Given a DOM node, return the ReactDOMComponent or ReactDOMTextComponent * instance, or null if the node was not rendered by this React.

(node)

 * instance, or null if the node was not rendered by this React.
 */
function getInstanceFromNode(node) {
  var inst = getClosestInstanceFromNode(node);
  if (inst != null && inst._nativeNode === node) {
    return inst;
  } else {
    return null;
  }
}

/**
 * Given a ReactDOMComponent or ReactDOMTextComponent, return the corresponding