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<!DOCTYPE html>

<html lang=en>

<head>

  <meta charset=UTF-8>

  <meta name=viewport content="width=device-width,initial-scale=1">

  <title>rows — JavaScript</title>

  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 .75rem;font-size:1.25rem;color:#0f172a}textarea{width:100%;max-width:400px;padding:.5rem .65rem;font:inherit;border:1px solid #cbd5e1;border-radius:6px;box-sizing:border-box;resize:vertical}.note{margin-top:.75rem;font-size:.875rem;color:#475569}</style>

</head>

<body>

  <h1>Dynamic rows</h1>

  <p>This textarea is resized to 10 rows via JavaScript:</p>



  <textarea id=dynamicTextArea placeholder="Type here…"></textarea>



  <p class=note><strong>Note:</strong> <code>rows</code> is set to <strong>10</strong> on load.</p>



  <script>document.getElementById("dynamicTextArea").rows=10</script>

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HTML rows Attribute — JavaScript