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AS3 Remove Non-Numeric Characters from a String

/ Published in: ActionScript 3
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  1. function removeNonNumericChars($str:String):String {
  2. 	var newStr:String = "";
  3. 	for (var i:int = 0; i<$str.length; i++) {
  4. 		var currentCharCode:Number = $str.charCodeAt(i);
  5. 		if ((currentCharCode >= 48) && (currentCharCode <= 57)) {
  6. 			newStr += $str.charAt(i);
  7. 		}
  8. 	}
  9. 	return newStr;
  10. }
  11.  
  12. var myString:String = "#12abc345^67%89)(-@!foo";
  13. trace("myString: "+myString);
  14. myString = removeNonNumericChars(myString);
  15. trace("myString: "+myString);
  16.  
  17. // OUTPUT
  18. // myString: #12abc345^67%89)(-@!foo
  19. // myString: 123456789

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