HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>matches compound</title>
</head>
<body>
  <li class="endangered" id="item">Philippine eagle</li>
  <button type="button" id="btn">Run tests</button>
  <pre id="out">—</pre>
  <script>
    document.getElementById("btn").onclick = function () {
      var item = document.getElementById("item");
      var lines = [
        'matches("li"): ' + item.matches("li"),
        'matches("li.endangered"): ' + item.matches("li.endangered"),
        'matches("div"): ' + item.matches("div")
      ];
      document.getElementById("out").textContent = lines.join("\n");
    };
  </script>
</body>
</html>

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Element.matches — compound selector (Try It)