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This method allows iterating over every occurrence of the given pattern (which can be a string or a regular expression).
string.scan(pattern, iterator); |
<html> <head> <title>Prototype examples</title> <script type="text/javascript" src="/javascript/prototype.js"> </script> <script> function showResult(){ var str = "apple, pear & orange"; alert ("Actaul Alert"); alert ( str.scan(/\w+/, alert ) ); } </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.
Following example can be used to populate an array:
<html> <head> <title>Prototype examples</title> <script type="text/javascript" src="/javascript/prototype.js"> </script> <script> function showResult(){ var fruits = []; var str = "apple, pear & orange"; str.scan(/\w+/, function(match){ fruits.push(match[0])}); fruits.inspect(); alert ( "fruits[0] : " + fruits[0]); alert ( "fruits[1] : " + fruits[1]); alert ( "fruits[2] : " + fruits[2]); } </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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