HTML Code

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JS Alphabet Pattern 27 - Try It</title>
</head>
<body>
  <h1>Centered pyramid</h1>
  <p>Edit <code>top</code> or spacing, then click Run.</p>

  <pre id="output"></pre>

  <script>
    (() => {
      const A = "A".charCodeAt(0);
      const top = "E".charCodeAt(0);

      let result = "";
      for (let i = A; i <= top; i++) {
        let line = "";
        for (let j = top; j > i; j--) line += "  ";
        for (let k = A; k <= i; k++) line += String.fromCharCode(k) + " ";
        result += line.trimEnd() + "\n";
      }

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

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

JavaScript Alphabet Pattern 27 (Try It)