function isInstanceOfNode()

in src/component/utils/isInstanceOfNode.js [12:27]

• 15 lines of code
• 6 McCabe index (conditional complexity)

function isInstanceOfNode(target: ?EventTarget): boolean {
  // we changed the name because of having duplicate module provider (fbjs)
  if (!target || !('ownerDocument' in target)) {
    return false;
  }
  if ('ownerDocument' in target) {
    const node: Node = (target: any);
    if (!node.ownerDocument.defaultView) {
      return node instanceof Node;
    }
    if (node instanceof node.ownerDocument.defaultView.Node) {
      return true;
    }
  }
  return false;
}