HTML Code

<!DOCTYPE html>

<html lang=en>

<head>

  <meta charset=UTF-8>

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

  <title>onsearch — dynamic handler</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}input[type=search]{display:block;width:100%;max-width:320px;padding:.5rem .75rem;border:1px solid #cbd5e1;border-radius:8px;font-size:.875rem;margin-bottom:.75rem}#log{padding:.75rem 1rem;border-radius:8px;font-size:.875rem;max-width:420px;background:#f1f5f9;border:1px solid #e2e8f0;color:#475569}</style>

</head>

<body>

  <h1>element.onsearch</h1>

  <p>Type and press Enter — or clear the field to trigger the search event.</p>



  <input type=search id=dynamicSearch placeholder="Search here…">

  <div id=log>Waiting for search…</div>



  <script>document.getElementById("dynamicSearch").onsearch=function(){var e=this.value.trim(),t=document.getElementById("log");e?(t.textContent="You searched for: "+e,t.style.background="#eff6ff",t.style.borderColor="#bfdbfe",t.style.color="#1e40af"):(t.textContent="Search cleared!",t.style.background="#f0fdf4",t.style.borderColor="#bbf7d0",t.style.color="#166534")}</script>

</body>

</html>

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HTML onsearch Attribute — dynamic handler