Swift Enum - Basics, Raw Values, Associated Values, CaseIterable & More

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Swift Enum - Basics, Raw Values, Associated Values, CaseIterable & More

Рет қаралды 49,290

4 жыл бұрын

Check out more information on Devmountain:
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In this video we discuss enums (enumerations) in Swift. I explain what enums are, how to use them as constants, Raw Value, CaseIterable, and Associated Values.
This tutorial was done using Swift 5.2 and Xcode 11.4.
Swift Documentation about Enums:
docs.swift.org/swift-book/Lan...
If you like my teaching style, I've released my first iOS dev course which is all about the take-home project job interview for iOS developers.
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Пікірлер: 124

@seanallen 4 жыл бұрын

Watch Next - iOS Dev Launchpad - Beginner Swift Overview - kzfaq.info/get/bejne/ptWBjaeHsLW-f3k.html

@misran449 4 жыл бұрын

i'm just going to pre-like every video from you that i open because at this point i know i will like them

@seanallen 4 жыл бұрын

haha, thanks for the support!

@tajfun6955 4 жыл бұрын

I`m working with swift from 2 years and every day i am finding a small piece of knowledge in videos or article on a medium where i surprised how many smart solutions is in Swift :D.

@mathiasriissorensen6994 4 жыл бұрын

Whenever I find myself stuck I turn to Sean Allen's videos first. Thanks again!

@F.Razor718 2 жыл бұрын

I’m a complete beginner and your teaching style is so easy to follow. Thanks for sharing!!!

@david_lev Жыл бұрын

~ "We'll get there someday" 15:23 I think you got there in a big way.. Thanks for the great videos!

@seanallen Жыл бұрын

We did. It took a while but we got there. Glad you enjoy the content!

@harungunes3735 3 жыл бұрын

It's a deep dive with a simple explanation. Thank you, Sean!

@rdtba21qw 4 жыл бұрын

Sean mate, I’m nearly to the end of your course and have loved it. I had literally set aside the subject of your use of the SFSymbol enum for a point to brush up on when I’m done and you’ve just released this - perfect timing and as always super clear and concise - thank you!

@seanallen 4 жыл бұрын

Glad you enjoyed it, Robin 😀

@thomasswatland 4 жыл бұрын

So many times I've used a Struct with static properties to hold on to related constants, and it feels "off" every time. Naming a Struct with a plural just doesn't sit right. I never thought of just doing the same with enums! That just looks and feels so much better. Thanks Sean, keep up the good work!

@zzhao463 3 жыл бұрын

Even better than the Stanford open class. (well for the parts covered. )

@ghargest66 4 жыл бұрын

Thanks for your service to the Swift community Sean. Another home run!

@seanallen 4 жыл бұрын

Thanks for the kind words, Greg 😀

@shynepo6 2 жыл бұрын

Sean: " 100k subs, we'll get there someday" ... Almost there man!! thanks for providing massive value to people on the IOS dev journey!

@withd5943 Жыл бұрын

One of the best tutorials on enum. Always coming back to refresh my knowledge here. 🙏

@seanallen Жыл бұрын

Glad it's helpful each time!

@KimbrellBrad 2 жыл бұрын

Less than 2 years later and you are at 99,400 subs! Feels like you were around 20K when I started subscribing. Congrats! Oh, and nice tutorial on enums! LOL

@vinrbi8080 2 жыл бұрын

At 15:23 “100,000 subscribers. We’ll get there one day” Almost there! 98.3K right now! And just earned a new one from me. Keep up the good work!

@leonidstechlearning2451 4 жыл бұрын

I didn't know about the underscores to format numbers. Great! :3

@seanallen 4 жыл бұрын

I like throwing in little tips like that in my videos.

@keatsp 3 жыл бұрын

Well you have one new sub now. Great video. Clear and concise. I am an experienced coder and still enjoyed the video.

@steknika 2 жыл бұрын

when you say “you’ll get there” on the 100k, but currently it is a 103k is priceless! keep up the good work!

@3909630 4 жыл бұрын

I usually insta-like every video from you, BUT YES IVE BEEN WAITING FOR THISSSSSSSSSS

@seanallen 4 жыл бұрын

🙌

@KanyantaMubanga 2 жыл бұрын

You said:100k subscribers, we'll get there some day. 97.1k right now. That day's getting closer and closer Sean. Rooting for you!

@adarshraj312 Жыл бұрын

new to swift. But, i know this guy... pretty Famous for iOS Dev 👏👏

@sarahstice4095 Жыл бұрын

"100,000 subscribers... we'll get there some day." Sitting at 127k, love to see it. Love your videos, thank you.

@Faisal50x 4 жыл бұрын

This is the best swift video ever seen. Damn Thanks Sean Allen for making this cool video.

@seanallen 4 жыл бұрын

Glad you liked it!

@natelehoux7604 4 жыл бұрын

Best intro to enums I've found anywhere!

@seanallen 4 жыл бұрын

Thanks for the kind words, Nate!

@MattyFnB 4 жыл бұрын

As always great clear and understandable videos, love your work

@seanallen 4 жыл бұрын

Glad you like them!

@bdaralan 4 жыл бұрын

Love enum especially when Swift allows associated value to have parameter name. For enum rawValue, I normally use it for database or cache value where the storage can only store primitive type and later I can recreate the enum using the rawValue.

@Wheelhouse406 Жыл бұрын

"Lets say 100,000 followers, we'll get there some day." He got there... I appreciate this guy helping me!!

@seanallen Жыл бұрын

Happy to help, Jimmy! And yup, we got there eventually 😀

@johndickson9709 Жыл бұрын

Recent subscriber, your videos are excellent. Thanks for sharing your knowledge.

@mrmillmill 2 жыл бұрын

Incredible video and explanation of enum's Sean. It seems like enum's could be used all through out an app. Thank you sir.

@lycansre 4 жыл бұрын

so much depth in your videos I like it you cleared almost everything about enums

@seanallen 4 жыл бұрын

Happy to hear it was helpful, Meshall 😀

@prachibile2798 3 жыл бұрын

I really liked this video so much. As I am a new learner of iOS it was so useful.

@Omeir34 4 жыл бұрын

Great tutorials Sean!

@pritommazumder9897 3 жыл бұрын

A pure community man!

@gakkieNL 4 жыл бұрын

Nice video. Very educational and easy to follow! Thanks Sean!

@seanallen 4 жыл бұрын

My pleasure!

@JeffCournoyerATC 3 жыл бұрын

I’ve been considering doing your GitHub followers class, but this video definitely did it for me! I just signed up and am excited to get started! Love your teaching style man!!!

@seanallen 3 жыл бұрын

Thanks for the kind words, Jeff. Hope you enjoy the course!

@naforever1 3 жыл бұрын

that moment when you wrote "100000" for KZfaq subscribers number and said "we'll get there someday", I stoped the video to subscribe! lol .. great content and teaching style. learned a lot, thank you.. all the best

@seanallen 3 жыл бұрын

Haha, thanks for the support, Ali. I appreciate it!

@prachipatel2841 3 жыл бұрын

Great Example, I understand whole concept of ENUM and how it can be useful. Thank You so much! 😊

@seanallen 3 жыл бұрын

Happy to help, Prachi!

@eliastabaka Жыл бұрын

Great tutorial!

@kuralaybiehler5638 Жыл бұрын

Thank you! Clear and simple explanation of enum!

@seanallen Жыл бұрын

Glad you liked it!

@yuriisameliuk2118 4 жыл бұрын

Good video . Thanks you Sean.

@JonatanEdOrtiz 3 жыл бұрын

Great video!

@NadiyaLevytska Жыл бұрын

15:27 you said " we will get to 100k subs some day" and look at you now! great Channel! keep up amazing work

@seanallen Жыл бұрын

Thanks Nad!

@ketanchoyal7024 3 жыл бұрын

Awesome just what I was looking for, Thanks

@seanallen 3 жыл бұрын

Glad I could help!

@nuwansameera9519 4 жыл бұрын

Thanks you Sean!

@RahulPahuja1991 4 жыл бұрын

Beautifully done thanks

@seanallen 4 жыл бұрын

Happy to help!

@joshr9723 4 жыл бұрын

I love using Enums that have String rawValues because you can take a string and turn it into type SocialPlatform in this example. ie. let twitterCase = SocialPlatform(rawValue: "This is my favorite!"). This is great if you want to store a string value in your database, but then convert it back to an enum type to make it easier to pass around in your code.

@guruitcompany 4 жыл бұрын

Awesome! Thanks 👍

@amitarya4894 10 ай бұрын

Superb 💯, thanks for this

@seanallen 10 ай бұрын

My pleasure 😊

@CraigSchubert 4 жыл бұрын

Great content yet again - thanks! :-)

@seanallen 4 жыл бұрын

Glad you enjoyed it!

@mr.iguide7508 4 жыл бұрын

This video was so needed. Thank you.

@ashokkumarmuthyam2986 4 жыл бұрын

Thank you sir. Your demonstration is awesome.I am from India.

@seanallen 4 жыл бұрын

Happy to help!

@andresuhartanto3385 4 жыл бұрын

Thank you so much for the clear explanation, i understand better about Enum thanks to you!

@seanallen 4 жыл бұрын

Happy to help!

@armandmugabo1170 Жыл бұрын

congratulations, you hit your once a youtube goal of 100k subs.

@seanallen Жыл бұрын

Thank you :)

@lolerskates876 3 жыл бұрын

I have used Enum for Arduino code. It makes it easier even for what color an LED should be

@arslankhalid2919 4 жыл бұрын

Hi, good to watch your video. please make a complete Deep video on computed and stored properties in swift. Thanks a lot

@nileshjdarji 4 жыл бұрын

Awesome 👍

@gurvirsingh4332 11 ай бұрын

Haha Cheers to you, U have crossed 100000 subscribers 💥 as u mentioned someday you will reach.

@seanallen 11 ай бұрын

🎉

@brandonwinston 4 жыл бұрын

thank you!

@seanallen 4 жыл бұрын

Happy to help

@VeryBlueBot 4 жыл бұрын

oh man this is so clear! thank you! Love these short gems really speeds up the learning process for a new language! Small question (which I probably could have just googled, but hey, Im typing already..) - Swift don't have 'default' in its switch statement?

@seanallen 4 жыл бұрын

Yes, that was something I should have covered in the video. There is a default statement you can use as a "catch-all". In the example in the video, I wanted to show all the options to really illustrate the point. But yes, a simple default case will work as well.

@VeryBlueBot 4 жыл бұрын

@@seanallen no worries its just a small thing :) just wanted to make sure its like in any other language..

@bitsurfer0101 3 жыл бұрын

@@seanallen You answered my question and explained how to use enums at the same time. I don't feel like I have my head in the sand so much anymore.

@mellamoraymond 3 жыл бұрын

Hi Sean. What's the difference of using enum vs struct when it comes to constant?

@mohdrahib1690 3 жыл бұрын

Hi Sean, thanks for explaining Enum I have a question why an stored property can not be associated with enum ??

@tompov227 Жыл бұрын

I find it super interesting how your keywords are set in Menlo but the rest of your editor is using SF Mono as the font. I know Xcode lets you but I have never seen people use different font faces for different source types

@Rahul-jf5kf 2 жыл бұрын

suppose I have multiple fields for each enum case like title, description, image URL. and are static for each case now i want list of all titles, list of all descriptions so son and also one method to get url from title image from title . please explain

@donathmm3881 4 жыл бұрын

Good video! What is left is the default case!

@seanallen 4 жыл бұрын

Hehe, it's hard to cover every possible thing 😀

@T0m4sfn 3 жыл бұрын

Just here to say you are about 13k left to reach 100k subscribers as the last example follows.

@vickyphan5494 3 жыл бұрын

Thanks for a great video!! What bootcamp did you go to?

@seanallen 3 жыл бұрын

Glad you liked it, Vicky! I went to one called Mobile Makers in San Francisco back in 2015. It actually no longer exists.

@mrmillmill 2 жыл бұрын

Anyone have any ideas for creating a function that adds cases to an enum?

@shadieossei4336 3 жыл бұрын

You're gonna get to 100,000 subscribers and be eligible for sponsorship

@nikandrmarhal 4 жыл бұрын

You also haven’t mentioned the `if case let` syntax. Would be a great topic for another video

@seanallen 4 жыл бұрын

Yup, it's a difficult balance to make a concise video, but also cover enough of the fundamentals. It's hard to cover every aspect of a topic in one video.

@dugrut1325 2 жыл бұрын

what is 'ItemInfoType' ???

@Karma_Rinku 3 жыл бұрын

You did not tell about recursive enum the last topic i waiting to see this but.. not there. bcoz i was confused in that . make on that a video

@maheshgvelly 4 жыл бұрын

Whats a recursive enum?

@erickramones2167 4 жыл бұрын

any videos on when to use private or public properties?

@seanallen 4 жыл бұрын

I created a video about access control here: kzfaq.info/get/bejne/iKx3eN2cp8ecY2g.html

@erickramones2167 4 жыл бұрын

@@seanallen cool, thanks.

@rrakesh05 4 жыл бұрын

Just awesome tutorial mate...

@seanallen 4 жыл бұрын

Glad you liked it

@maliknrishabh 4 жыл бұрын

Another way to use enums could be computed vars

@dugrut1325 2 жыл бұрын

i left more confused, i need more, how real data is pushed into an enum and then get the results, for example, if you explained 'func set' more then maybe I would of gotten it.

@farakhakimov 4 жыл бұрын

I think we can use default state instead of using all other cases on the last example 🙂

@seanallen 4 жыл бұрын

You are correct. That would work.

@cometmace 4 жыл бұрын

1:18 An enum has to have cases 4:09 SFSymbols - no cases. Just static lets. Please to be explaining?

@saj5935 4 жыл бұрын

static let also similar to case you should know static keyword mean

@Jeff-zc6rr 2 ай бұрын

geez.. i'm learning swiftui now.. and everytime i watch something there is something new.. why in the world is there the word "on" before platform..

@seanallen 2 ай бұрын

that's called an argument label. It's mean to help the function be more human readable when you call it.

@paramsingh4104 2 жыл бұрын

Swift enums are really advanced, can put Typescript to shame.

@gjermundification 4 жыл бұрын

Compiler protocols: `cat /opt/local/dev/swift/stdlib/public/core/CompilerProtocols.swift | grep "public protocol" | grep -v _ | sort` github.com/apple/swift/blob/master/stdlib/public/core/CompilerProtocols.swift