It is a good practice to initialize your variables to null when you don't have any other specific value to assign to them : Variable Declare « Data Type « Flash / Flex / ActionScript

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Flash / Flex / ActionScript » Data Type » Variable Declare

It is a good practice to initialize your variables to null when you don't have any other specific value to assign to them


 



package{

  import flash.display.Sprite;

  

  public class Main extends Sprite{

    public function Main(){



        var myVariable:Number = null;

        trace(myVariable);

        

        var sMessage:String = "Welcome!";

        trace(sMessage);

    }

  }

}

Related examples in the same category

1.	To declare a variable using strong typing: var variableName:Datatype;
2.	Once a variable has been declared, you can assign a value to it using a simple assignment statement with an equals sign
3.	You can also declare the variable and assign a value, or initialize the variable, all on one line
4.	Perform operations using variables
5.	You can declare several variables on a single line
6.	Using Access Controls
7.	Overriding Variables
8.	Use the this keyword when referring to an instance variable with the same name as a function variable:
9.	To declare the data type of a variable, use the colon operator right after the name of the variable.
10.	Using Untyped Variables with the Wildcard (*) Data Type

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