HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery .height() getter</title>
  <style>
    body { font-family: sans-serif; padding: 16px; }
    button { font-size: 12px; margin: 2px; padding: 6px 10px; cursor: pointer; }
    p { width: 150px; border: 1px solid red; padding: 8px; }
    #out { color: red; font-weight: bold; margin-top: 12px; }
  </style>
</head>
<body>
  <button type="button" id="getp">Get Paragraph Height</button>
  <button type="button" id="getd">Get Document Height</button>
  <button type="button" id="getw">Get Window Height</button>
  <p>Sample paragraph to test height</p>
  <div id="out">Click a button above.</div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    function showHeight(element, height) {
      $("#out").text("The height for the " + element + " is " + height + "px.");
    }
    $("#getp").on("click", function() {
      showHeight("paragraph", $("p").height());
    });
    $("#getd").on("click", function() {
      showHeight("document", $(document).height());
    });
    $("#getw").on("click", function() {
      showHeight("window", $(window).height());
    });
  </script>
</body>
</html>

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jQuery .height() — get paragraph height (Try It)