The default value for an unassigned variable of type Number is NaN : Number : Data Type Flash / Flex / ActionScript examples

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The default value for an unassigned variable of type Number is NaN


 

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
         var n:Number;
         trace(n); // NaN
         n = 12;
         trace(n); // 12

    }
  }
}

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