The undefined value represents the absence of data for variables, parameters, and return values without a specified type annotation. : Undefined : Data Type Flash / Flex / ActionScript examples

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The undefined value represents the absence of data for variables, parameters, and return values without a specified type annotation.


 


package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var info = new Object( );
        info.city = "Toronto";
        info.country = undefined;
        trace(info.language);  // Displays: undefined


    }
  }
}