Function aux

src/utils.ts:79–91

(viewNode: T)

  tree: T
): T => {
  const aux = (viewNode: T): T | undefined => {
    for (const node of viewNode.childNodes) {
      if (eq(node)) {
        return node;
      }

      const res = aux(node);

      if (res) {
        return res;
      }
    }
  };

  if (eq(tree)) {
    return tree;