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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>Decimal to octal — recursive</title>
</head>
<body>
  <h1>Recursive octal string</h1>
  <p>Edit the test values at the bottom, then click <strong>Run</strong>.</p>
  <pre id="out"></pre>
  <script>
    (function () {
      function printOctalRecursive(n) {
        if (n < 8) {
          return String(n);
        }
        return printOctalRecursive(Math.floor(n / 8)) + String(n % 8);
      }
      var lines = [];
      lines.push("57 in octal: " + printOctalRecursive(57));
      lines.push("0 in octal: " + printOctalRecursive(0));
      document.getElementById("out").textContent = lines.join("\n");
    })();
  </script>
</body>
</html>

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