Created
February 8, 2020 20:09
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Asynchronous Operation
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| class AsyncOperation: Operation { | |
| override func main() { | |
| DispatchQueue.global().async { | |
| print("Executing") | |
| } | |
| } | |
| } | |
| let operation = AsyncOperation() | |
| operation.start() | |
| print("Done") | |
| // May output "Executing" then "Done" or "Done" then "Executing" |
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