What Are Result Builders?

"What are Result Builders?" you scream madly into the night.
Why, they're the secret sauce behind SwiftUI! They're the magical mechanism enabling Swift's special blend of declarative DSLs. So, let's tear them apart and see how they work, so you can start putting them to work in your own code.
Become Magical Code Buddy: / kitlangton
Further Ramblings: / kitlangton

[@eliasayele1102]

Well I thought I was just lazy and didn’t want to learn, but it turns out I was simply missing great teachers like this in my life.

[@philcole4630]

Wow, great video!!! I struggle to watch lecture videos let alone come away feeling a learned something the first time. I watched this whole video (the first time) and I retained the information you presented on result builder. Subscribed

[@kitlangton]

Amazing 🫡 Happy to be of service! Teaching Success! 🔥👨‍🏫🔥

[@IkedaDogbo]

Top tier presentation

[@ghazitozri4989]

Thank you for sharing ! Dope edit btw !!

[@kitlangton]

Haha. Thank you! I put a little more elbow grease into the editing for this one 😜

[@KeshenMac]

I religiously watch & Like all your videos

[@kitlangton]

O, Great Blessings! May your code compile swiftly and without error! ❤️‍🔥

[@RichardBaileyrichoncode]

Nicely presented. Thank you.

[@kitlangton]

Glad it was helpful!

[@last_aid_kit]

what great content. thanks for the video!

[@kitlangton]

Glad you liked it! 😎

[@movietime345]

very nicely explained, once again!

[@kitlangton]

Woo! That's great to hear. I become increasingly skeptical of what I've made the further I get into editing 😅. There's still so much to talk about, but I don't think anyone wants a 5-hour Result Builder epic.

[@movietime345]

@@kitlangton I'd vote *for* it. I personally enjoy these deep dives, and you really know how to also bring the "why" in the discussion, along with the "how"

[@brandonmaul]

Well done again Kit. Are these all done in Keynote or Final Cut? Or was the snippet you showed at 8:45 actually how you're building these?

[@kitlangton]

For this one, I wrote a SwiftUI slideshow DSL and did it in that-so yeah, 8:45 is a bit meta 😄 It uses ResultBuilder as well!

[@arulpraveen]

@@kitlangtonWhat!!! This is super impressive. You are the kind of person the world needs. Could you help me get started with this meta project too? I really aspire to build something like this.

[@aleksandrzinovev429]

I laughed at some points like with 3 result budders and Steve

[@manasemichaelmhando8034]

Honestly, I almost drop out the first 30-60secs THEN gave in to give it a shot later to find this entire video very useful. The intro was a bit stretched out and delayed the main point but overall great video and thanks for putting hours to create such resourceful content. SUBSCRIBED ✨

[@Griffin12536]

Took me 20 seconds to like you and realize you weren't talking about Rust. YT algorithm fail. Love your style. Good luck with the content.

[@kitlangton]

Haha, oh no! I code-catfished you! `Result` must've confused the old KZbin 😜 Thanks for the kind words despite my accidental duplicity! 🥰

[@chrisjackson9733]

Another great video but I'm a little confused. Sonic Beige sounds cool and all, but what happened to Liquid Beige?

[@kitlangton]

NOOOO! Where's my script supervisor?! 🚨🚨🚨Continuity Alert! 🚨🚨🚨 (haha, I think it briefly crossed my mind that I might've bungled a beige somewhere between segments).

[@chrisjackson9733]

@@kitlangtonI only noticed because I'm going through a Liquid Beige phase, myself. 🥴

[@aloussase]

Hi Kit! Do you have any thoughts on Flutter?

[@kitlangton]

Not particularly, to be honest. I've never used it myself. I am primarily interested in writing for iOS and macOS, simply because I'm a user of those platforms. Also, I've been quite pleased with the direction of Swift and SwiftUI-so a cross-platform app development platform probably wouldn't compete favorably given the whole Swift/Apple vertical integration thing 😅 But happy to look into something specific, if you'd like me to form an opinion on something 😁

[@aloussase]

@@kitlangton Well the reason I asked is because thanks to your videos Ive developed a liking for UI stuff. I wanted to use Swift but dont have a Mac or Iphone so I started learning Flutter instead. I found some similarities, for example Dart has a feature similar to result builders for arrays. Anyway, I think everything you're showing is super cool and will definitely try recreating it with Flutter!

[@kitlangton]

@@aloussase ❤ That sounds great! I find UI programming to be very fun. There's a bit more tactility & delight than with straight backend work-though that can be fun too! Flutter would certainly be the closest thing to SwiftUI out there-I'm sure SwiftUI was partially influenced by it. Give it a whirl and let me know how it stacks up 😊

[@sumanth3036]

How are you presenting? So cool. Is it a mac thing?

[@kitlangton]

Why, I made a little slide show DSL with SwiftUI! 🤓 And thank you! ☺️

[@sumanth3036]

Awesome!! Subscribed. How about you doing a video about that? 🤓

[@kitlangton]

​@@sumanth3036 That's a wonderful idea 😁 I've put it on the list 🥳

[@Westmaner]

Kit, Amazing video. Thank you. Keep up the great work. Perhaps you could build a small app to show us your work flow of app development. I am particularly interested in how you handle mac and iOS differences in a multiplatform project.

[@kitlangton]

That's a great idea! I've been wanting to build a lil' meditation timer app for myself, so perhaps this is a good opportunity.

[@nicklegorrec6859]

do any ios developers actually use custom result builders at their company job?

[@kitlangton]

It's more likely relevant to people developing libraries. Of course, it be useful to understand how it works in order to interact with said libraries, especially when things don't behave as you'd like them to. 😄 But yeah, I doubt people are often making a bunch of custom protocols all the time for app work.

[@JumpingCow]

Fantastic! Another Apple thingy carefully demystified.

[@kitlangton]

Another thingy soundly defeated! 🤺

[@aleksandrzinovev429]

you are best )