Flash 8 Documentation

ActionScript 2.0 Language Reference > ActionScript classes > Object > isPropertyEnumerable (Object.isPropertyEnumerable method)

isPropertyEnumerable (Object.isPropertyEnumerable method)

Indicates whether the specified property exists and is enumerable. If true, then the property exists and can be enumerated in a for..in loop. The property must exist on the target object because this method does not check the target object's prototype chain.

Properties that you create are enumerable, but built-in properties are generally not enumerable.

Availability: ActionScript 1.0; Flash Player 6

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

Version 8

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