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# wait()

Blocks the current thread until the condition is signaled.

```
func wait()
```

## Discussion

You must lock the receiver prior to calling this method.

## See Also

  [Threading Programming Guide](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/Multithreading/Introduction/Introduction.html#//apple_ref/doc/uid/10000057i)

[`-  lock`](/documentation/Foundation/NSLocking/lock())

Attempts to acquire a lock, blocking a thread’s execution until the lock can be acquired.


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