Flash / Flex / ActionScript/String/charAt

charAt() takes one parameter, a value for an index within the string. This method returns a new one-character string that contains the value of the character at the specified index.

 

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var sTitle:String = new String("ActionScript");
        var sChar:String = sTitle.charAt(0);
    }
  }
}

Retrieving One Character at a Time

 
package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var example:String = "a string";
        
        for ( var i:int = 0; i < example.length; i++ ) {
          trace( example.charAt( i ) );
        }
    }
  }
}

Use of a for loop to loop through the characters of a string, one at a time

 
package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var sTitle:String = new String("ActionScript");
        for (var i:Number = 0; i < sTitle.length; i++){
           trace(sTitle.charAt(i));
        }
    }
  }
}
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