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Prototype Enumerable sortBy() Method


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This method provides a custom-sorted view of the elements based on the criteria computed, for each element, by the iterator.

The optional context parameter is what the iterator function will be bound to. If used, the this keyword inside the iterator will point to the object given by the argument.

Syntax:

Iterator.sortBy([context]);

Return Value :

  • Returns an array of the sorted values

Example:

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

<script>

function showResult(){

  var arr = ['hello', 'world', 'this', 'is', 'nice'];
  var sorted = arr.sortBy(function(s) { return s.length; })

  alert("Test 1 : " + sorted.inspect() );
  // is', 'this', 'nice', 'world','hello']
}

</script>
</head>

<body>

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