HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery name starts with selector</title>
  <style>
    input { display: block; margin: 8px 0; padding: 6px; width: 240px; }
  </style>
</head>
<body>
  <input name="newsletter" placeholder="newsletter">
  <input name="milkman" placeholder="milkman">
  <input name="newsboy" placeholder="newsboy">
  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>
  <script>
    $("input[name^='news']").val("news here!");
  </script>
</body>
</html>

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jQuery input[name^='news'] — official demo (Try It)