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# init(containerClassDescription:containerSpecifier:key:test:)

Returns an `NSWhoseSpecifier` object initialized with the given attributes.

```
init(containerClassDescription classDesc: NSScriptClassDescription, containerSpecifier container: NSScriptObjectSpecifier?, key property: String, test: NSScriptWhoseTest)
```

## Parameters

`classDesc`

Class description for the receiver’s container object.

`container`

An object specifier for the receiver’s container object.

`property`

The key for the property for which to test.

`test`

The test condition.

## Return Value

An `NSWhoseSpecifier` object initialized with the given attributes.

## Discussion

Invokes the super class’s [`init(containerClassDescription:containerSpecifier:key:)`](/documentation/Foundation/NSScriptObjectSpecifier/init(containerClassDescription:containerSpecifier:key:)) and sets the whose test condition to `test`.

## See Also

  [Cocoa Scripting Guide](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/ScriptableCocoaApplications/SApps_intro/SAppsIntro.html#//apple_ref/doc/uid/TP40002164)


---

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