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Prototype select() Method

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This method takes an arbitrary number of CSS selectors (strings) and returns an array of extended descendants of element that match any of them.

This method is very similar to $$() but can be used within the context of one element, rather than the whole document. The supported CSS syntax is identical, so please refer to the $$() docs for details.

Syntax:

element.select(selector...);

Return Value:

Example:

<html>
<head>
<title>Prototype examples</title>

<script type="text/javascript" 
   src="/javascript/prototype.js">
</script>
<script>

function showResult()
{

   var arr = $('apples').select('[title="yummy!"]');
   // returns [h3, li#golden-delicious, li#mutsu]
   arr.each(function(node){
      alert("First : " + node.nodeName + ': ' + node.innerHTML);
   });

   arr = $('apples').select( 'p#saying', 'li[title="yummy!"]');
   // returns [li#golden-delicious, li#mutsu,  p#saying]
   arr.each(function(node){
      alert("Second : " + node.nodeName + ': ' + node.innerHTML);
   });

   arr = $('apples').select('[title="disgusting!"]');
   // returns []
   arr.each(function(node){
      alert("Third : " + node.nodeName + ': ' + node.innerHTML);
   });
}

</script>
</head>

<body">

  <p id="test">Click the button to see the result.</p>
  
  <ul id="fruits">
  <li id="apples">
    <h3 title="yummy!">Apples</h3>
    <ul id="list-of-apples">
      <li id="golden" title="yummy!" >Golden</li>
      <li id="mutsu" title="yummy!">Mutsu</li>
      <li id="mcintosh">McIntosh</li>
      <li id="ida-red">Ida Red</li>
    </ul>
    <p id="saying">An apple a day keeps the doctor away.</p>  
  </li>
  </ul>

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

</body>
</html>

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


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