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# exit()

Terminates the current thread.

```
class func exit()
```

## Discussion

This method uses the [`current`](/documentation/Foundation/Thread/current) class method to access the current thread. Before exiting the thread, this method posts the [`NSThreadWillExit`](/documentation/Foundation/NSNotification/Name-swift.struct/NSThreadWillExit) with the thread being exited to the default notification center. Because notifications are delivered synchronously, all observers of [`NSThreadWillExit`](/documentation/Foundation/NSNotification/Name-swift.struct/NSThreadWillExit) are guaranteed to receive the notification before the thread exits.

Invoking this method should be avoided as it does not give your thread a chance to clean up any resources it allocated during its execution.

## See Also

[`current`](/documentation/Foundation/Thread/current)

Returns the thread object representing the current thread of execution.


---

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