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  <meta charset="utf-8">
  <title>Array splice() — return</title>
</head>
<body>
  <h1>splice() — return value</h1>
  <pre id="out"></pre>
  <script>
    (function () {
      var ids = [101, 102, 103, 104];
      var deleted = ids.splice(2, 1);
      document.getElementById("out").textContent =
        "deleted id: " + deleted[0] + "\n" +
        "remaining: " + JSON.stringify(ids);
    })();
  </script>
</body>
</html>

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JavaScript Array splice() — return value (Try It)