Now I seem to be getting pretty much closer to the point of understanding WHY do we need closures)) Thanks a lot!

I am starting university in a couple weeks and by previously watching ur top quality videos on software engineering u have really inspired me to take this course even more because I now realise the many things you can do as a software engineer especially creating apps and how much you can potentially earn thanks👌🏾

I love these kind of videos, where you explore the code syntax for advanced stuff. Nice and clean, thank you brian!

FINALLY someone who made me understand closures, thank you!

Beautiful closure explanation..!! Thank you!

Eventually someone decided to make closure understandable and easy to use thank you sir !

Best tutorial for Closures so far. Thank you man.

Thanks paused the video and used a closure to solve some mases in that ios swift game. Was a lot of fun.

Thank you very much for making this tutorial video and, for making it with simple explanations so I can understand it. I love it !!

Nice explanation , I've been watching tutorials about this in the last days , I thinks that is a very useful concept

Best tutorial on closures !!!! I want to learn more about @escaping closures.

Brilliant. Really good explanation of closures.

Your videos are so helpful. Very clear and informative. Thank you!!!

Hello. Interesting video. I have never used closures like that. Mostly for async tasks so far. Will try to integrate a few of your examples in my future projects. Cheers.

This video is so helpful. Thanks for posting it!

This was really helpful. Thank you!

Really needed this! Many thanks! You have yourself a new subscriber.

Another great video, everyday you surprise me with what I can learn, thanks !!

nicely explained, can't wait for you to talk about Generics in the future : )

You are a great teacher. Thank you

Another really useful tutorial! Thanks a lot

Very clear and informative, thank you! 😇

Great tutorial, thank you Brian

Thanks a lot Brian!

Sir its awesome thanks for your contribution for making our future bright...

Great video, thanks for posting!

Nicely explained 🤩, thank you

One of my favorite youtubers! Awesome stuff!

Thank you! It was extremely helpful))

This was wonderful explanation. I’ll use my code with closure an upcoming days 🙂🙂

Great video. Keep it up Brian ✌🏼

6:54 "You probably don't want to name your functions as long as this." I would disagree with that to an extent. You can either have a vague function name and comments, which will more than likely not get updated if someone changes the code. Or you can have a longer, but more meaningful function name that actually explains what is happening. A good example of this is a guy I used to work with. He hates how comments always become out of date and doesn't use them too much. So instead, he uses longer, but more meaningful function names. We once made fun of him because he had a function name that was close to twice as long as filterWithPredicateCondition(). But on the flip side, everyone who looked at the function knew it's exact purpose.

Thanks man. Very helpful

Thanks so much .helpful tutorial

Amazing! Big thanks!

I just tested this code: func filterWithPredicateClosure(closure: (Int) -> Bool, numbers: [Int]) -> [Int]{ let greater = numbers.filter(closure) return greater } filterWithPredicateClosure(closure: { return $0 > 6 }, numbers: [1,2,3,4,5,10]) It successfully run. :D Thanks Brian.

Love your videos! Been helping me so so much. I don't like how you panned the audio though (: Still thumbs up for being so awesome

Hi Brian, great video! how about a follow up with closures that contain important keywords like @escaping in Swift?

THE NEW UKposts UPDATE IS AMAZING!!!!

Great video Brian as always! Thank you for videos they are really awesome! At the moment I am very curious about how to handle uploading multiple images. I think this will be a great topic. Please let me know your thoughts!

very cool lesson, thank you!!!

Bro... you save me from understanding closure! Thanks a lot!

One of the best videos of using closures in a simple way.Great One Thanks.But do you know any source for going in depth.

nice work with the audio, real pro level stuff.

too much thanks for you'r hard work

Hi Brian, really need a lesson of weak self and strong self in swift and how to avoid the memory leak in closures. Many thanks!

Hi brian! Nice explanation of closures! It will be nice to see the `Generics` tutorial. Thanks

Hi Brian! Thanks for explanation. One more question - what about unwoned and weak references -> do we need to use them in every closure?

Nicely Explained

You’re the man brother

You're a inspiration.

Hi. Thanks Brian and Apple for creating closures. It's less typing when you need to modify some logic. The closure within a closure is like a dream within a dream within a dream- Inception movie:-) God bless Proverbs 31

Thanks a lot!

you saved me, thanks a lot

Cool, thanks.

nicely explained

Hi Brian, great video. However I think you should have mentioned trailing closures too, as it simplifies the code quite a bit. func greaterThanPredicateClosure(numbers: [Int], closure: (Int) -> Bool) -> [Int]{ // body } let result = greaterThanPredicateClosure([1, 2, 3, 4, 5], { value in return value > 5 }) Here, we use the weird closure as parameter syntax. let result = greaterThanPredicateClosure([1, 2, 3, 4, 5]){ value in return value > 5 } Here, we use the trailing closure syntax, where if a closure is the last parameter of a function, it can be written outside the function parenthesis, making it easier to read. Other than that, I liked the video.

nice video . Thanx!!

Thanks!!!

finally understood closures:)

This was superuseful!!!

so cool, you are awesome !

good explanation thanks. why are they use some times escaping key word and why we are put front of the parameter _ these symbol like _escaping

Thank you

Hi Brian, I think it would be also nice to say about short-way syntax of closures. For example: func closureTest(closure: (Int) -> Bool, array: [Int]) -> [Int]{ return array.filter(closure) } let result1 = closureTest(closure: {(num) -> Bool in return num > 4 }, array: [1,4,5,6,7,8]) let result = closureTest(closure: {$0 > 4}, array: [1,4,5,6,7,8]) I think it's obvious, that short-way syntax much more comfortable for using in code.

Your video is very lenthy for downloading

superb

Hey great video, but doesn't Swift already have a built in collection function called Filter?

I was reading the closures section in the Swift Guide in Apple Books, didn’t search anything about it but suddenly this video popped up in recommendations. I hope it is just coincidence

Kind of syntax used in Parse and firebase for querying I guess, also using clousures for completion handlers but with no returned values because they are async.

If you are appending the filtered values to the array, do you need to clear out the array every time you call the function?

Hey Brian, I follow your videos to make my code robust and reach to standard. Can you please make a video to clarify the difference between Array and Set.

Difficult to understand, but amazing.

Great

I need to load the chat data for tableview. I have already used fetched results controller for getting the data . 1. Let me just explain how can I load bunch of data while scrolling to top 2. While I come friend list, how much data can I load to chat page on first time

Mast YAAR

within closures, i see lots of time people use [weak self] to prevent retain cycle, i mean how do we figure out if inside a closure there is a retain cycle ? can you explain more about it in you future tutorial ? thanks very much

Awesome awesome vid!!!!

Trying to identify key components of closures: (a) the struct/func/etc. that defines the closure signature will also be the caller the closure; (b) the closure definer (or where the closure body is implemented) is where the exact VALUES for the parameters are located. This guy MUST match the defined signature, but he gets to define the implementation of the closure against the values in his scope.

Hey Brian! Thanks for the video. I am new to Swift and the concept of closures and I have a question. Wouldn't it be more sensible to create an extension on Array for this purpose? Something like: extension Array { func filterList(_ isIncluded: (Element) -> Bool) -> [Element] { var result = [Element]() for x in self where isIncluded(x) { result.append(x) } return result } } So you could call it via dot notation on your Array: let filteredList = [1, 2, 3, 4, 5, 6, 7, 8].filterList { $0 > 3 } Thanks in advance!

You're rocking voong

Hi Brian, could you tell me which microphone you use?

Love your videos! I'm currently learning Swift but lately have been hearing a lot about Progressive Web Applications and honestly a it does scare beginners like me learning IOS programming when people keep saying this might replace it. Can you do a video on it? I'm sure you've been hearing it a lot lately

Does Swift have anything similar to "Promises" or "async/await" in Javascript? And would it be possible to get a tutorial on the "dispatch" function in the future?

Still helpfull Brian:)

How do you make selected codes to //comment?? What is the shortcut?

Nice but still I have a doubts when we can use function and when we can use closure and completion handlers . Y we have to use those

please introduce some of the best free books for swift learning??

Will there be more project tutorials like Twitter feed in IOS?

Hi I would like to know if you do you're video from taiwan or somewhere else I can see in most video in background taiwan picture

I have always wanted to see how the guys behind radio mic look when they speak like this. Now I know :)

I think you should use white background and black text in editor for better visual.

Is my internet slow or the video is blurry? Tried in different browsers

When I enter this into playground and do what you did press the run button I only get the response ready at the top and no results, this is exactly how I run ios apps is there something different going on in playgrounds?

Are you back in the States Brian?

closures complicate very much for few advantages is it right?

6:02 There is no Editor -> Refactor -> Rename ... in playgrounds?

If the array is left as [10,5,1,2,0] you get from the modulus [10,5,0] rather than the expected [10,5]. Can you explain that and what to do to weed it out? I understand the modulus but how to return it without the zero? Thanks

Why do you have to end the variable "filteredSetOfNumbers" with () ?

This is very informative but if you are still having some time to build a full fledged application for youtube - I have one request. Please make a tutorial on streaming remote audio like from Soundlcoud for a full fledged music player. Neither Apple, nor a single tutorial is out there that showcases how to build a music player. For eg. AVAudioQueuePlayer wont go reverese as its a queue. If you use AVPlayer - music wont play when in background if you handle a custom AVPlayerItem Queue. MediaITems don't work with Soundcloud stream URL's as it cannot fetch title/artist etc. There are so many problems that I cannot even begin to comprehend. Thank you for reading.