HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>createTouchList pair</title>
  <style>body{font-family:system-ui,sans-serif;padding:1.5rem;} pre{border:1px solid #ccc;padding:0.75rem;}</style>
</head>
<body>
  <button id="btn" type="button">Detect legacy pair</button>
  <pre id="out">Click the button</pre>
  <script>
    document.getElementById("btn").addEventListener("click", function () {
      var touchOk = typeof document.createTouch === "function";
      var listOk = typeof document.createTouchList === "function";
      document.getElementById("out").textContent = [
        "createTouch: " + touchOk,
        "createTouchList: " + listOk,
        touchOk && listOk
          ? "legacy pair present (still avoid in new apps)"
          : "migrate — use real touch / pointer events"
      ].join("\n");
    });
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

Document.createTouchList — pair with createTouch (Try It)