HTML Code

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>Double-click interval</title>

  <style>

    body { font-family: sans-serif; padding: 16px; max-width: 28rem; }

    #item { padding: 16px; background: #e0f2fe; border-radius: 8px; cursor: pointer; text-align: center; }

    #log { margin-top: 12px; padding: 12px; background: #f1f5f9; border-radius: 6px; }

  </style>

</head>

<body>

  <div id="item">Click me (try double-click)</div>

  <div id="log">Waiting for clicks.</div>

  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>

  <script>

    var lastClick = 0;

    $("#item").on("click", function (event) {

      var delta = event.timeStamp - lastClick;

      if (lastClick && delta < 300) {

        $("#log").text("Double-click detected (" + Math.round(delta) + " ms)");

        lastClick = 0;

      } else {

        $("#log").text("Single click — click again quickly");

        lastClick = event.timeStamp;

      }

    });

  </script>

</body>

</html>

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jQuery event.timeStamp — double-click detection (Try It)