HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>nextNode tags</title>
</head>
<body>
  <div id="box"><span>A</span><span>B</span></div>
  <pre id="out">Waiting...</pre>
  <script>
    var it = document.createNodeIterator(
      document.getElementById("box"),
      NodeFilter.SHOW_ELEMENT
    );
    var tags = [];
    var node;
    while ((node = it.nextNode())) tags.push(node.nodeName);
    document.getElementById("out").textContent = JSON.stringify(tags);
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

NodeIterator.nextNode() — collect tags (Try It)