<!--
{
  "availability" : [
    "macCatalyst: 13.0.0 -",
    "macOS: 10.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Foundation",
  "identifier" : "/documentation/Foundation/NSAppleScript/init(source:)",
  "metadataVersion" : "0.1.0",
  "role" : "Initializer",
  "symbol" : {
    "kind" : "Initializer",
    "modules" : [
      "Foundation"
    ],
    "preciseIdentifier" : "c:objc(cs)NSAppleScript(im)initWithSource:"
  },
  "title" : "init(source:)"
}
-->

# init(source:)

Initializes a newly allocated script instance from the passed source.

```
init?(source: String)
```

## Parameters

`source`

A string containing the source code of a script.

## Return Value

The initialized script object, `nil` if an error occurs.

## Discussion

This method is a designated initializer for `NSAppleScript`.

---

Copyright &copy; 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)