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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);
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Return Value :
- Returns the array of property values
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>
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To understand it in better way you can Try it yourself.
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