HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>String.charCodeAt()</title>
</head>
<body>
  <pre id="out"></pre>
  <script>
    var str = "𠮷𠮾";
    document.getElementById("out").textContent = [
      str.charCodeAt(0),
      str.charCodeAt(1),
      str.length,
      str.codePointAt(0),
      String.fromCodePoint(str.codePointAt(0))
    ].join("\n");
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

String.charCodeAt() — surrogate pairs (Try It)