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  <title>Array concat() — three arrays</title>
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  <h1>concat() — three arrays</h1>
  <pre id="out"></pre>
  <script>
    (function () {
      var fruits1 = ["apple", "orange"];
      var fruits2 = ["banana", "grape"];
      var moreFruits = ["kiwi", "mango"];
      var merged = fruits1.concat(fruits2, moreFruits);
      document.getElementById("out").textContent = JSON.stringify(merged);
    })();
  </script>
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JavaScript Array concat() — merge three arrays (Try It)