User Guide

556 ActionScript classes
Properties that you create are enumerable, but built-in properties are generally not
enumerable.
Availability: ActionScript 1.0; Flash Lite 2.0
Parameters
name:String -
Returns
Boolean - A Boolean value: true if the property specified by the name parameter is
enumerable.
Example
The following example creates a generic object, adds a property to the object, then checks
whether the object is enumerable. By way of contrast, the example also shows that a built-in
property, the
Array.length property, is not enumerable.
var myObj:Object = new Object();
myObj.prop1 = "hello";
trace(myObj.isPropertyEnumerable("prop1")); // Output: true
var myArray = new Array();
trace(myArray.isPropertyEnumerable("length")); // Output: false
See also
for..in statement
isPrototypeOf (Object.isPrototypeOf method)
public isPrototypeOf(theClass:Object) : Boolean
Indicates whether an instance of the Object class is in the prototype chain of the object
specified as an argument. This method returns
true if the object is in the prototype chain of
the object specified by the
theClass parameter. The method returns false not only if the
target object is absent from the prototype chain of the
theClass object, but also if the
theClass argument is not an object.
Availability: ActionScript 1.0; Flash Lite 2.0
Parameters
theClass:Object -