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# current

Returns the operation queue that launched the current operation.

```
class var current: OperationQueue? { get }
```

## Return Value

The operation queue that started the operation or `nil` if the queue could not be determined.

## Discussion

You can use this method from within a running operation object to get a reference to the operation queue that started it. Calling this method from outside the context of a running operation typically results in `nil` being returned.

## See Also

  [Concurrency Programming Guide](https://developer.apple.com/library/archive/documentation/General/Conceptual/ConcurrencyProgrammingGuide/Introduction/Introduction.html#//apple_ref/doc/uid/TP40008091)


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