myObject.propertyIsEnumerable( propertyOrMethodName ) in ECMAScript 262
Determines if the object/instance itself has a property or method of the supplied name which will appear in a for (prop in obj) enumeration.
Arguments
| name | type | description |
|---|---|---|
| propertyOrMethodName | String | The name of the property or me |
- Return Type
- Boolean
Description
This method does not search the inheritance chain of any instance supplied. Returns false if no property/method of the supplied name exists, or if one exists but will not appear during enumeration.
In general, built-in properties and methods are not enumerable, while user-defined properties and methods are.