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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery.grep() — index</title>
</head>
<body>
  <h1>Filter by value and index</h1>
  <pre id="out"></pre>
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    (function () {
      var arr = [1, 9, 3, 8, 6, 1, 5, 9, 4, 7, 3, 8, 6, 9, 1];
      var filtered = $.grep(arr, function (n, i) {
        return n !== 5 && i > 4;
      });
      document.getElementById("out").textContent = filtered.join(", ");
    })();
  </script>
</body>
</html>

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jQuery.grep() — value and index (Try It)