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Prototype Enumerable pluck() Method

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This method is an optimization for a common use-case of collect() method: fetching the same property for all the elements.

Syntax:

Iterator.pluck(propertyName);

Return Value :

Example:

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

<script>

function showResult(){

  var arr = ['world', 'this', 'is', 'nice'].pluck('length');

  alert("Test 1 : " + arr.inspect() );
  // Returns [5, 4, 2, 4]

}

</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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