---
title: "add(_:)"
framework: appkit
role: symbol
role_heading: Instance Method
path: "appkit/nsarraycontroller/add(_:)"
---

# add(_:)

Creates and adds a new object to the receiver’s content and arranged objects.

## Declaration

```swift
@IBAction func add(_ sender: Any?)
```

## Parameters

- `sender`: Typically the object that invoked this method.

## Discussion

Discussion Beginning with OS X v10.4 the result of this method is deferred until the next iteration of the runloop so that the error presentation mechanism (see Error Responders and Error Recovery) can provide feedback as a sheet.