HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>scripts type</title>
  <script type="module">console.log("module");</script>
</head>
<body>
  <script>console.log("classic");</script>
  <pre id="out"></pre>
  <script>
    var modules = 0, classic = 0;
    for (var s of document.scripts) {
      if (s.type === "module") modules++;
      else classic++;
    }
    document.getElementById("out").textContent =
      "modules: " + modules + ", classic: " + classic;
  </script>
</body>
</html>

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Document.scripts — module vs classic (Try It)