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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Array map() — users</title>
</head>
<body>
  <h1>map() — extract names</h1>
  <pre id="out"></pre>
  <script>
    (function () {
      var users = [
        { id: 1, name: "Alice" },
        { id: 2, name: "Bob" },
        { id: 3, name: "Charlie" }
      ];
      var names = users.map(function (user) {
        return user.name;
      });
      document.getElementById("out").textContent = JSON.stringify(names);
    })();
  </script>
</body>
</html>

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JavaScript Array map() — extract names (Try It)