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<html>
<head>
  <meta charset="utf-8">
  <title>JS Star Pattern 10 - Try It (printRow)</title>
</head>
<body>
  <h1>Filled Diamond (printRow)</h1>
  <p>Edit half-height or printRow, then click Run.</p>
  <pre id="output" style="font-family: monospace; white-space: pre;"></pre>
  <script>
    let rows = 5;
    let result = "";

    function printRow(rows, i) {
      result += " ".repeat(rows - i) + "*".repeat(2 * i - 1) + "\n";
    }

    for (let i = 1; i <= rows; i++) {
      printRow(rows, i);
    }
    for (let i = rows - 1; i >= 1; i--) {
      printRow(rows, i);
    }

    document.getElementById("output").textContent = result;
  </script>
</body>
</html>

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JavaScript Star Pattern 10 (Try It - printRow)