OperationQueue and Concurrency in Swift 5 (Xcode 12, Swift 2020) - iOS Development

[@professormeniscus]

Really clear, concise and well structured explanation. Thanks!

[@iOSAcademy]

Thanks

[@clementcardonnel3219]

Excellent video. Of all articles, blogs, documentation I could find. That's the one thing that made me get it. Thanks!

[@iOSAcademy]

Thanks!

[@AW-gj4ji]

Would like to see you put it to use in a project

[@iOSAcademy]

Will do

[@BABEENGINEER]

@@iOSAcademy Please do this!!

[@Денис-ж3ф5р]

what is the difference between dispatchQueue and operationQueue? My mentor could not answer the question.

[@iOSAcademy]

Operation queue is built with dispatch under the hood

[@Денис-ж3ф5р]

@@iOSAcademy Thanks, I it got from the video, It took me three rewatches :-)

[@max500k]

Great video, but I think it may be a bit misleading to say that a queue is synonymous with a thread (mentioned at 3:15). A queue lines up tasks to be executed on a thread (which is an abstract context of execution).

[@ЯрославГрицунь]

max concurrent operation count is the same as semaphores in GCD if I understand correctly?

[@ВалерийСкворцов-р2т]

10: 30, Operation can be used from iOS 2, whereas GCD can be used from iOS 8 that arises a question. How can operation be GCD under the hood if operation is older, Thanks for your reply in advanced.

[@rudolphhock1155]

Isn't then the addDependency graph the opposite of declaring a variable weak, as it is bound to another operation ?

[@followerOfJesus723]

Yes!!!! Thank you sir!!!!!

[@iOSAcademy]

Youre welcome

[@biin8576]

can you please add core data to your reminder/notes/todo apps? any of them.

[@rudolphhock1155]

I would be surprised if Apple didn't integrate this into GCD, did this come before GDC and it's more of a legacy approach ?

[@TheBooban]

Hello recent comment guy. Do you know the diff between Operation and NSOperation? The apple documentation has both and are almost exactly the same. I guess Operation is just newer? Edit: never mind, saw the drop down now, NSOperation is Obj-c

[@rudolphhock1155]

@@TheBooban I believe the NS (Next Step) prefixed stuff is from Obj-C, which is what Swift was based on, and it's gradually being removed.

[@TheBooban]

@@rudolphhock1155 yea, that I knew, but as you said a lot of stuff is left and thought this was too. Just didn't catch the obj-c tag in the Apple Docs this time. But thanks. And, as you point out, because of NSOperation, "Operation" isn't actually newer as per your original comment. I think it's just that if you don't need it, don't use Operation, just use GCD. You know, the exact tool for the job. That's my guess.