create enum in actionscript 3 and compare

Question

I need to create some enum values, give it a default value and then compare it.

I have this enum class

public class Car
{
    public static const Tesla:int = 1;
    public static const Ford:int = 2;
}

How do I initiate a new Car enumn variable with a default value of "Tesla" and how do I compare the variable? I'm looking for something like this:

public var c:Car = new Car(Car.Tesla);

if (c == Car.Tesla){
// Do something
}

Edit, it is now changed to the following:

public final class Car
{

    public static const Tesla:String = "tesla";
    public static const Ford:String = "ford";

}

And in the mxml file:

    public var c:String = Car.Tesla;

    if (c == Car.Tesla){
        // Do something
    }

Answer 1

I have this enum class

Just so we're on the same page about it: that's not an enum and there are no enums in as3. The language doesn't have that feature.

How do I initiate a new Car enumn variable with a default value of "Tesla" and how do I compare the variable?

You cannot, because Car is a type and the static properties it has are of type int which is something completely different.

What you can do is this:

var c:int = Car.Tesla;

if (c == Car.Tesla){
    // Do something
}

If you want to have a Car object instead, add a brand property to the class of type int , which you can then assign the value of your constants to:

var c:Car = new Car();
c.brand = Car.Tesla;

if (c.brand == Car.Tesla){
    // Do something
}

You could also add a parameter to the constructor and insert the value there.

Btw. changing

public static const Tesla:int = 1;

to

public static const Tesla:String = "tesla";

will give you the chance to get more meaningful values during debugging. The built in constants like MouseEvent.CLICK are defined this way.