Testing for Existence : Object « Class « Flash / Flex / ActionScript

1.	Animation
2.	Array
3.	Class
4.	Data Type
5.	Development
6.	Function
7.	Graphics
8.	Language
9.	Network
10.	Regular Expressions
11.	Statement
12.	String
13.	TextField
14.	XML

Flash / Flex / ActionScript » Class » Object

Testing for Existence

 



package{

  import flash.display.Sprite;

  

  public class Main extends Sprite{

    public function Main(){



        var notes:Object = {Roger: "hereiam"};

        trace( "Roger" in notes ); // Returns true

        trace( "Josh" in notes); // Returns false



    }

  }

}

Related examples in the same category

1.	Creating an Object: var variableName:datatype = new ClassName();
2.	Using the dot (.) operator to create the same variable causes an error because it violates the syntactic rules for identifiers:
3.	Accessing Object Properties
4.	Accessing Object Methods
5.	Using Objects as Associative Arrays
6.	Use this operator to investigate instances of classes for methods and public properties
7.	Removing Properties

java2s.com | Contact Us | Privacy Policy

All other trademarks are property of their respective owners.