Prototype first() Method
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This method returns the first item in the array, or undefined if the array is empty.
Syntax
array.first() ;
Return Value
- Returns the first element of the array.
Example
<html>
<head>
<title>Prototype examples</title>
<script type="text/javascript"
src="/javascript/prototype.js">
</script>
<script>
function showResult(){
var arr = ['Sam', 'Justin', 'Andrew', 'Dan'];
alert("First element is : " + arr.first() );
}
</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.
prototype_array_processing.htm
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