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Prototype flatten() Method

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This method returns a flat (one-dimensional) version of the array. Nested arrays are recursively injected inline.

This can prove very useful when handling the results of a recursive collection algorithm.

Syntax:

array.flatten()  ;

Return Value:

Example:

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

function showResult(){

   var arr =['frank',['bob','lisa'],['jill',['tom','sally']]];
   // Now flatten this array.
   var newArr = arr.flatten();
   newArr.each(function(item) {
     alert(item);
   });
   

}

</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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