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<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
  <script>
    (function() {
      var arr = [
        1,
        2,
        3,
      ];
      display("arr.length = " + arr.length);
      if (arr.length !== 3) {
        display("Wrong, it should be 3");
      }
      
      function display(msg) {
        var p = document.createElement('p');
        p.innerHTML = String(msg);
        document.body.appendChild(p);
      }
    })();
  </script>
</body>
</html>
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anonymouspro
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