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Prototype Form focusFirstElement() Method


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This method gives keyboard focus to the first element of the form.

This is useful for enhancing usability on your site by bringing focus on page load to forms such as search forms or contact forms where a user is ready to start typing right away.

Syntax:

form.focusFirstElement();

Return Value :

  • It returns HTMLFormElement.

Example:

<html>
<head>
<title>Prototype examples</title>
   <script type="text/javascript" 
   src="/javascript/prototype.js">
   </script>
<script>

function showResult()
{
   var form = $('example'); 
   
   form.focusFirstElement(); 
   

}

</script>
</head>

<body>

  <p>Click the button to see the result.</p>
  <br />

  <form id="example" action="#" onsubmit="return false">
  <fieldset><legend>User info</legend>
  <div><label for="username">Username:</label> 
  <input name="username" id="username" value="Sulien" type="text">
  </div>
  <div><label for="age">Age:</label> 
  <input name="age" id="age" value="23" size="3" type="text">
  </div>
  <div><label for="hobbies">Your hobbies are:</label>
  <select name="hobbies" id="hobbies" multiple="multiple">
    <option>coding</option>
    <option>swimming</option>
    <option>hiking</option>
    <option>drawing</option>
  </select></div>
  </fieldset>
  </form>

  <br />
  <input type="button" value="Result" onclick="showResult();"/>

</body>
</html>

To understand it in better way you can Try it yourself.



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