HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>radio name group</title>
  <style>
    body { font-family: sans-serif; padding: 16px; }
    label { display: block; margin: 6px 0; }
    #genderOut { margin-top: 12px; padding: 12px; background: #fef3c7; border: 1px solid #f59e0b; }
  </style>
</head>
<body>
  <fieldset>
    <legend>Gender</legend>
    <label><input type="radio" name="gender" value="female"> Female</label>
    <label><input type="radio" name="gender" value="male"> Male</label>
  </fieldset>
  <fieldset>
    <legend>Size</legend>
    <label><input type="radio" name="size" value="s"> S</label>
    <label><input type="radio" name="size" value="m"> M</label>
  </fieldset>
  <div id="genderOut">Pick a gender option</div>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("input[name=gender]:radio").on("change", function() {
      $("#genderOut").text("Selected: " + this.value);
    });
  </script>
</body>
</html>

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input[name=gender]:radio group (Try It)