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>
Output
prototype_array_processing.htm
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