# insertValue(_:inPropertyWithKey:) Inserts an object in the collection specified by the passed key. ``` func insertValue(_ value: Any, inPropertyWithKey key: String) ``` ## Discussion The method `insertIn:` is used if it exists. Otherwise, raises an `NSUndefinedKeyException`. This is part of Cocoa’s scripting support for inserting newly-created objects into containers without explicitly specifying a location. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)