HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>touchmove count</title>
  <style>
    #pad {
      width: 280px; height: 140px; border: 2px solid #333;
      touch-action: none; background: #f5f5f5;
      display: flex; align-items: center; justify-content: center;
    }
  </style>
</head>
<body>
  <div id="pad">Slide across</div>
  <pre id="out">moves=0</pre>
  <script>
    var pad = document.getElementById("pad");
    var out = document.getElementById("out");
    var n = 0;
    var dragging = false;
    function reset() {
      n = 0;
      out.textContent = "moves=0";
    }
    function bump() {
      n += 1;
      out.textContent = "moves=" + n;
    }
    pad.addEventListener("touchstart", reset, { passive: true });
    pad.addEventListener("touchmove", bump, { passive: true });
    pad.addEventListener("mousedown", function () {
      dragging = true;
      reset();
    });
    pad.addEventListener("mousemove", function () {
      if (dragging) bump();
    });
    window.addEventListener("mouseup", function () {
      dragging = false;
    });
  </script>
</body>
</html>

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Element touchmove — count moves (Try It)