3 examples of 'finddomnode is deprecated in strictmode' in JavaScript

270
function isDomNode( node ) {
271
	return node && node.nodeType && ( typeof node.addEventListener == 'function' );
272
}

3
export default function findDOMNode (el) {
4
  if (el === window) {
5
    return el
6
  } else if (el === document) {
7
    return document.documentElement
8
  } else if (el) {
9
    return ReactDOM.findDOMNode(el) // eslint-disable-line react/no-find-dom-node
10
  }
11
}

46
function isElement(domNode) {
47
    return domNode.nodeType !== undefined;
48
}