Using Untyped Variables with the Wildcard (*) Data Type

 

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var x:*;
        
        x = 3;
        trace(x);
        x = "name";
        trace(x);

    }
  }
}

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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.	It is a good practice to initialize your variables to null when you don't have any other specific value to assign to them
5.	Perform operations using variables
6.	You can declare several variables on a single line
7.	Using Access Controls
8.	Overriding Variables
9.	Use the this keyword when referring to an instance variable with the same name as a function variable:
10.	To declare the data type of a variable, use the colon operator right after the name of the variable.

Using Untyped Variables with the Wildcard (*) Data Type : Variable Declare « Data Type « Flash / Flex / ActionScript

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