# 🎓 Courses & Articles **URL:** https://forums.kodeco.com/c/tutorials/5.md?page=16 [Latest](https://forums.kodeco.com/latest.md) · [Categories](https://forums.kodeco.com/categories.md) · [Tags](https://forums.kodeco.com/tags.md) **Page:** 17 --- ## [In-App Purchases · Listing the Products | raywenderlich.com](https://forums.kodeco.com/t/in-app-purchases-listing-the-products-raywenderlich-com/67057)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 11\ **Last updated:** [February 16, 2021, 8:04pm UTC](https://forums.kodeco.com/t/in-app-purchases-listing-the-products-raywenderlich-com/67057 "2021-02-16T20:04:57Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/1304447-in-app-purchases/lessons/10 --- ## [AWS Lambda Tutorial for Swift: Getting Started | raywenderlich.com](https://forums.kodeco.com/t/aws-lambda-tutorial-for-swift-getting-started-raywenderlich-com/127559)
**Author:** [@amlug](https://forums.kodeco.com/u/amlug)\ **Replies:** 10\ **Last updated:** [August 3, 2021, 8:11am UTC](https://forums.kodeco.com/t/aws-lambda-tutorial-for-swift-getting-started-raywenderlich-com/127559 "2021-08-03T08:11:41Z")
Swift is now available in the world of serverless functions via AWS Lambda! Get started deploying your first on-demand serverless function with our AWS Lambda for Swift tutorial. This is a companion discussion topic f… --- ## [Intermediate Realm on iOS - Part 3: Multiple Realms | Ray Wenderlich](https://forums.kodeco.com/t/intermediate-realm-on-ios-part-3-multiple-realms-ray-wenderlich/30866)
**Author:** [@icanzilb](https://forums.kodeco.com/u/icanzilb)\ **Replies:** 9\ **Last updated:** [August 14, 2017, 5:08pm UTC](https://forums.kodeco.com/t/intermediate-realm-on-ios-part-3-multiple-realms-ray-wenderlich/30866 "2017-08-14T17:08:27Z")
Learn how to split your app's data persistence needs across several files to isolate data or just use different Realm features per file. This is a companion discussion topic for the original entry at https… --- ## [Your First iOS and SwiftUI App · App Icon and Display Name | raywenderlich.com](https://forums.kodeco.com/t/your-first-ios-and-swiftui-app-app-icon-and-display-name-raywenderlich-com/81831)
**Author:** [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\ **Replies:** 12\ **Last updated:** [December 14, 2020, 6:01pm UTC](https://forums.kodeco.com/t/your-first-ios-and-swiftui-app-app-icon-and-display-name-raywenderlich-com/81831 "2020-12-14T18:01:01Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4919757-your-first-ios-and-swiftui-app/lessons/46 --- ## [Advanced Swift: Memory Management · Conclusion | raywenderlich.com](https://forums.kodeco.com/t/advanced-swift-memory-management-conclusion-raywenderlich-com/71286)
**Author:** [@rayfix](https://forums.kodeco.com/u/rayfix)\ **Replies:** 9\ **Last updated:** [November 9, 2020, 8:51pm UTC](https://forums.kodeco.com/t/advanced-swift-memory-management-conclusion-raywenderlich-com/71286 "2020-11-09T20:51:53Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/1940727-advanced-swift-memory-management/lessons/9 --- ## [Beginning Table Views · Conclusion | Ray Wenderlich](https://forums.kodeco.com/t/beginning-table-views-conclusion-ray-wenderlich/47953)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 10\ **Last updated:** [February 17, 2020, 7:05pm UTC](https://forums.kodeco.com/t/beginning-table-views-conclusion-ray-wenderlich/47953 "2020-02-17T19:05:27Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5995-beginning-table-views/lessons/56 --- ## [Beginning Collection Views - Part 2: Getting Started | Ray Wenderlich](https://forums.kodeco.com/t/beginning-collection-views-part-2-getting-started-ray-wenderlich/24045)
**Author:** [@skyrocketsw](https://forums.kodeco.com/u/skyrocketsw)\ **Replies:** 9\ **Last updated:** [May 1, 2019, 12:29pm UTC](https://forums.kodeco.com/t/beginning-collection-views-part-2-getting-started-ray-wenderlich/24045 "2019-05-01T12:29:22Z")
Learn about the most important components of collection views; the controller, the layout, and the data source. This is a companion discussion topic for the original entry at https://www.raywenderlich.com/… --- ## [iOS 11: NLP with Core ML | Ray Wenderlich](https://forums.kodeco.com/t/ios-11-nlp-with-core-ml-ray-wenderlich/37187)
**Author:** [@samdavies](https://forums.kodeco.com/u/samdavies)\ **Replies:** 9\ **Last updated:** [October 19, 2018, 10:11am UTC](https://forums.kodeco.com/t/ios-11-nlp-with-core-ml-ray-wenderlich/37187 "2018-10-19T10:11:37Z")
Natural Language Processing (NLP) has benefited greatly over recent years through the development of machine learning techniques. Discover how the introduction of Core ML in iOS 11 makes NLP highly accessible with… --- ## [Top 10 Most Popular iOS Tutorials on raywenderlich.com](https://forums.kodeco.com/t/top-10-most-popular-ios-tutorials-on-raywenderlich-com/30040)
**Author:** [@airjordan12345](https://forums.kodeco.com/u/airjordan12345)\ **Replies:** 9\ **Last updated:** [May 31, 2017, 3:37pm UTC](https://forums.kodeco.com/t/top-10-most-popular-ios-tutorials-on-raywenderlich-com/30040 "2017-05-31T15:37:50Z")
We’ve compiled a list of the top 10 most popular iOS Tutorials on raywenderlich.com — check out which tutorials topped the leaderboard! This is a companion discussion topic for the original entry at https://www.raywen… --- ## [Saving Data in iOS · Saving on Device | Ray Wenderlich](https://forums.kodeco.com/t/saving-data-in-ios-saving-on-device-ray-wenderlich/50169)
**Author:** [@jessycatterwaul](https://forums.kodeco.com/u/jessycatterwaul)\ **Replies:** 10\ **Last updated:** [June 16, 2019, 4:09am UTC](https://forums.kodeco.com/t/saving-data-in-ios-saving-on-device-ray-wenderlich/50169 "2019-06-16T04:09:27Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/6307-saving-data-in-ios/lessons/11 --- ## [Vapor 4 Authentication: Getting Started | raywenderlich.com](https://forums.kodeco.com/t/vapor-4-authentication-getting-started-raywenderlich-com/106486)
**Author:** [@natanrolnik](https://forums.kodeco.com/u/natanrolnik)\ **Replies:** 10\ **Last updated:** [February 22, 2021, 6:24pm UTC](https://forums.kodeco.com/t/vapor-4-authentication-getting-started-raywenderlich-com/106486 "2021-02-22T18:24:40Z")
In this Vapor 4 tutorial, you’ll learn how to implement user authentication for your app using both bearer tokens and basic authentication headers. This is a companion discussion topic for the original entry at https… --- ## [iOS 11 Launch Party Giveaway Winners – and Last Day for Discount!](https://forums.kodeco.com/t/ios-11-launch-party-giveaway-winners-and-last-day-for-discount/36331)
**Author:** [@crispy8888](https://forums.kodeco.com/u/crispy8888)\ **Replies:** 9\ **Last updated:** [November 16, 2017, 8:11pm UTC](https://forums.kodeco.com/t/ios-11-launch-party-giveaway-winners-and-last-day-for-discount/36331 "2017-11-16T20:11:49Z")
Check out the winners of our iOS 11 Launch Party giveaway — and don’t forget today is the last day for our iOS 11 book sale! This is a companion discussion topic for the original entry at https://www.raywenderlich.com… --- ## [Beginning Table Views · Refactoring the Controller | Ray Wenderlich](https://forums.kodeco.com/t/beginning-table-views-refactoring-the-controller-ray-wenderlich/48472)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 11\ **Last updated:** [November 14, 2019, 7:38pm UTC](https://forums.kodeco.com/t/beginning-table-views-refactoring-the-controller-ray-wenderlich/48472 "2019-11-14T19:38:58Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5995-beginning-table-views/lessons/19 --- ## [Your First iOS App - Part 33: Closures | Ray Wenderlich Videos](https://forums.kodeco.com/t/your-first-ios-app-part-33-closures-ray-wenderlich-videos/45081)
**Author:** [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\ **Replies:** 11\ **Last updated:** [June 13, 2019, 8:12pm UTC](https://forums.kodeco.com/t/your-first-ios-app-part-33-closures-ray-wenderlich-videos/45081 "2019-06-13T20:12:26Z")
Learn how to use an important construct in Swift called closures, which you often use to provide a block of code that is executed some time in the future. This is a companion discussion topic for the origi… --- ## [Your First iOS App - Part 3: Buttons and | Ray Wenderlich Videos](https://forums.kodeco.com/t/your-first-ios-app-part-3-buttons-and-ray-wenderlich-videos/45052)
**Author:** [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\ **Replies:** 10\ **Last updated:** [July 9, 2019, 7:11pm UTC](https://forums.kodeco.com/t/your-first-ios-app-part-3-buttons-and-ray-wenderlich-videos/45052 "2019-07-09T19:11:30Z")
Learn how to add a button to the app and connect it to some Swift code that prints a message to the console. This is a companion discussion topic for the original entry at https://www.raywenderlich.com/599… --- ## [Your Second Kotlin Android App - Part 23: Returning | Ray Wenderlich](https://forums.kodeco.com/t/your-second-kotlin-android-app-part-23-returning-ray-wenderlich/40579)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 11\ **Last updated:** [January 11, 2020, 8:57pm UTC](https://forums.kodeco.com/t/your-second-kotlin-android-app-part-23-returning-ray-wenderlich/40579 "2020-01-11T20:57:34Z")
Activities not only present layouts to the user, but they can also provide data to other activities. This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4534-your-s… --- ## [Your First Kotlin Android App - Part 22: Adding | Ray Wenderlich](https://forums.kodeco.com/t/your-first-kotlin-android-app-part-22-adding-ray-wenderlich/40513)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 9\ **Last updated:** [February 22, 2019, 4:39pm UTC](https://forums.kodeco.com/t/your-first-kotlin-android-app-part-22-adding-ray-wenderlich/40513 "2019-02-22T16:39:00Z")
Learn about properties and how to add them to an activity. This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4738-your-first-kotlin-android-app/lessons/22 --- ## [Your Second iOS and SwiftUI App · Deleting from Lists | raywenderlich.com](https://forums.kodeco.com/t/your-second-ios-and-swiftui-app-deleting-from-lists-raywenderlich-com/85219)
**Author:** [@jessycatterwaul](https://forums.kodeco.com/u/jessycatterwaul)\ **Replies:** 13\ **Last updated:** [April 7, 2021, 12:20am UTC](https://forums.kodeco.com/t/your-second-ios-and-swiftui-app-deleting-from-lists-raywenderlich-com/85219 "2021-04-07T00:20:16Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5662524-your-second-ios-and-swiftui-app/lessons/14 --- ## [Reactive Programming with RxAndroid in Kotlin: An Introduction | raywenderlich.com](https://forums.kodeco.com/t/reactive-programming-with-rxandroid-in-kotlin-an-introduction-raywenderlich-com/72195)
**Author:** [@kandroidj](https://forums.kodeco.com/u/kandroidj)\ **Replies:** 9\ **Last updated:** [January 14, 2020, 11:20pm UTC](https://forums.kodeco.com/t/reactive-programming-with-rxandroid-in-kotlin-an-introduction-raywenderlich-com/72195 "2020-01-14T23:20:51Z")
Learn about how Reactive programming is a whole new paradigm using RxJava and RxAndroid in Android with Kotlin. This is a companion discussion topic for the original entry at https://www.raywenderlich.com/2071847-rea… --- ## [Networking with URLSession · Authentication with URLSession | raywenderlich.com](https://forums.kodeco.com/t/networking-with-urlsession-authentication-with-urlsession-raywenderlich-com/54301)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 9\ **Last updated:** [November 14, 2019, 3:44pm UTC](https://forums.kodeco.com/t/networking-with-urlsession-authentication-with-urlsession-raywenderlich-com/54301 "2019-11-14T15:44:14Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/7476-networking-with-urlsession/lessons/20 --- ## [Your First iOS and SwiftUI App · Getting Started with SwiftUI | raywenderlich.com](https://forums.kodeco.com/t/your-first-ios-and-swiftui-app-getting-started-with-swiftui-raywenderlich-com/80848)
**Author:** [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\ **Replies:** 10\ **Last updated:** [July 4, 2020, 1:50am UTC](https://forums.kodeco.com/t/your-first-ios-and-swiftui-app-getting-started-with-swiftui-raywenderlich-com/80848 "2020-07-04T01:50:06Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4919757-your-first-ios-and-swiftui-app/lessons/4 --- ## [Your First Kotlin Android App - Part 25: Handling | Ray Wenderlich](https://forums.kodeco.com/t/your-first-kotlin-android-app-part-25-handling-ray-wenderlich/40550)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 10\ **Last updated:** [June 24, 2019, 4:07pm UTC](https://forums.kodeco.com/t/your-first-kotlin-android-app-part-25-handling-ray-wenderlich/40550 "2019-06-24T16:07:03Z")
If you want to react to events, you need to write some actions. This video will show you how. This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4738-your-first-ko… --- ## [Creating Reusable Characters With Blender and Unity | Ray Wenderlich](https://forums.kodeco.com/t/creating-reusable-characters-with-blender-and-unity-ray-wenderlich/47879)
**Author:** [@blackdragonbe](https://forums.kodeco.com/u/blackdragonbe)\ **Replies:** 10\ **Last updated:** [March 25, 2019, 12:04pm UTC](https://forums.kodeco.com/t/creating-reusable-characters-with-blender-and-unity-ray-wenderlich/47879 "2019-03-25T12:04:55Z")
Characters in video games are often as memorable as the accompanying gameplay and music. In this tutorial, you’ll learn how to prepare a humanoid model using Blender and how to bring it into Unity. This is a companio… --- ## [Kotlin Generics Tutorial: Getting Started | raywenderlich.com](https://forums.kodeco.com/t/kotlin-generics-tutorial-getting-started-raywenderlich-com/81958)
**Author:** [@pablo](https://forums.kodeco.com/u/pablo)\ **Replies:** 13\ **Last updated:** [April 4, 2021, 11:54pm UTC](https://forums.kodeco.com/t/kotlin-generics-tutorial-getting-started-raywenderlich-com/81958 "2021-04-04T23:54:13Z")
In this tutorial, you’ll become familiar with Kotlin generics so that you can include them in your developments to make your code more concise and flexible. This is a companion discussion topic for the original entry… --- ## [Text Kit Tutorial: Getting Started | Ray Wenderlich](https://forums.kodeco.com/t/text-kit-tutorial-getting-started-ray-wenderlich/49118)
**Author:** [@bmorefield](https://forums.kodeco.com/u/bmorefield)\ **Replies:** 10\ **Last updated:** [May 2, 2019, 12:08am UTC](https://forums.kodeco.com/t/text-kit-tutorial-getting-started-ray-wenderlich/49118 "2019-05-02T00:08:24Z")
In this tutorial, you’ll learn how to use Text Kit in your iOS app to layout your text and create different visual styles. This is a companion discussion topic for the original entry at https://www.raywenderlich.com/… --- ## [Server Side Swift with Kitura - Part 7: | Ray Wenderlich Videos](https://forums.kodeco.com/t/server-side-swift-with-kitura-part-7-ray-wenderlich-videos/43581)
**Author:** [@dokun1](https://forums.kodeco.com/u/dokun1)\ **Replies:** 11\ **Last updated:** [July 9, 2019, 10:53pm UTC](https://forums.kodeco.com/t/server-side-swift-with-kitura-part-7-ray-wenderlich-videos/43581 "2019-07-09T22:53:14Z")
I'll walk you through what to expect when you "push the button" to put your API in the Cloud, and how to test it when it's live on the internet! This is a companion discussion topic for the original entry … --- ## [Beginning Android Layouts - Part 9: RelativeLayout | Ray Wenderlich](https://forums.kodeco.com/t/beginning-android-layouts-part-9-relativelayout-ray-wenderlich/40645)
**Author:** [@macsimus](https://forums.kodeco.com/u/macsimus)\ **Replies:** 10\ **Last updated:** [August 31, 2018, 4:19am UTC](https://forums.kodeco.com/t/beginning-android-layouts-part-9-relativelayout-ray-wenderlich/40645 "2018-08-31T04:19:25Z")
Learn about how to use the RelativeLayout ViewGroup to position sibling views with specific relationships to one another. This is a companion discussion topic for the original entry at https://www.raywende… --- ## [Beginning Collection Views · Customize Collection Views | Ray Wenderlich](https://forums.kodeco.com/t/beginning-collection-views-customize-collection-views-ray-wenderlich/50038)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 11\ **Last updated:** [October 7, 2020, 8:25am UTC](https://forums.kodeco.com/t/beginning-collection-views-customize-collection-views-ray-wenderlich/50038 "2020-10-07T08:25:34Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/6308-beginning-collection-views/lessons/3 --- ## [Models and Views | raywenderlich.com](https://forums.kodeco.com/t/models-and-views-raywenderlich-com/124108)
**Author:** [@jessycatterwaul](https://forums.kodeco.com/u/jessycatterwaul)\ **Replies:** 15\ **Last updated:** [October 17, 2021, 10:08pm UTC](https://forums.kodeco.com/t/models-and-views-raywenderlich-com/124108 "2021-10-17T22:08:09Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/15234721-your-second-ios-and-swiftui-app/lessons/3 --- ## [Self-sizing Table View Cells | raywenderlich.com](https://forums.kodeco.com/t/self-sizing-table-view-cells-raywenderlich-com/55928)
**Author:** [@kevcol](https://forums.kodeco.com/u/kevcol)\ **Replies:** 9\ **Last updated:** [July 10, 2019, 5:26pm UTC](https://forums.kodeco.com/t/self-sizing-table-view-cells-raywenderlich-com/55928 "2019-07-10T17:26:37Z")
In this tutorial, you’ll learn how to enable self-sizing table view cells, as well as how to make them resize on-demand and support Dynamic Type. This is a companion discussion topic for the original entry at https:/… --- ## [Reproducing Popular iOS Controls - Part 17: | Ray Wenderlich Videos](https://forums.kodeco.com/t/reproducing-popular-ios-controls-part-17-ray-wenderlich-videos/44752)
**Author:** [@leamars](https://forums.kodeco.com/u/leamars)\ **Replies:** 11\ **Last updated:** [February 4, 2019, 7:42am UTC](https://forums.kodeco.com/t/reproducing-popular-ios-controls-part-17-ray-wenderlich-videos/44752 "2019-02-04T07:42:39Z")
This video will teach you how to create an interactive graph that lets the user move through its data with their finger. This is a companion discussion topic for the original entry at https://www.raywender… --- ## [Dart Basics | raywenderlich.com](https://forums.kodeco.com/t/dart-basics-raywenderlich-com/80380)
**Author:** [@macsimus](https://forums.kodeco.com/u/macsimus)\ **Replies:** 10\ **Last updated:** [July 5, 2020, 1:57pm UTC](https://forums.kodeco.com/t/dart-basics-raywenderlich-com/80380 "2020-07-05T13:57:12Z")
Get an introduction to the basics of the Dart programming language, used for development with the Flutter SDK for mobile, web, and beyond. This is a companion discussion topic for the original entry at https://www.ra… --- ## [Beginning Collection Views | Ray Wenderlich](https://forums.kodeco.com/t/beginning-collection-views-ray-wenderlich/49694)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 12\ **Last updated:** [February 26, 2019, 4:02pm UTC](https://forums.kodeco.com/t/beginning-collection-views-ray-wenderlich/49694 "2019-02-26T16:02:20Z")
Learn all about using collection views in iOS, starting with the basics, such as setting up a collection view in Interface Builder, and then move right through to some more advanced topics, like creating and manipulating… --- ## [Programming in Swift: Functions and Types · Challenge: Closures & Collections | raywenderlich.com](https://forums.kodeco.com/t/programming-in-swift-functions-and-types-challenge-closures-collections-raywenderlich-com/91014)
**Author:** [@catie](https://forums.kodeco.com/u/catie)\ **Replies:** 11\ **Last updated:** [May 24, 2021, 3:42pm UTC](https://forums.kodeco.com/t/programming-in-swift-functions-and-types-challenge-closures-collections-raywenderlich-com/91014 "2021-05-24T15:42:48Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5429279-programming-in-swift-functions-and-types/lessons/16 --- ## [Building a Museum App with ARKit 2 | Ray Wenderlich](https://forums.kodeco.com/t/building-a-museum-app-with-arkit-2-ray-wenderlich/51423)
**Author:** [@mkatz](https://forums.kodeco.com/u/mkatz)\ **Replies:** 10\ **Last updated:** [May 2, 2019, 12:00am UTC](https://forums.kodeco.com/t/building-a-museum-app-with-arkit-2-ray-wenderlich/51423 "2019-05-02T00:00:13Z")
Have you ever stood at a museum exhibit and wanted to know more about the art or artifact than the little placard provides? There should really be an app for that. Well, you can make such an app with image and object det… --- ## [Welcome to the new raywenderlich.com! | Ray Wenderlich](https://forums.kodeco.com/t/welcome-to-the-new-raywenderlich-com-ray-wenderlich/46191)
**Author:** [@rwenderlich](https://forums.kodeco.com/u/rwenderlich)\ **Replies:** 9\ **Last updated:** [November 19, 2019, 2:44am UTC](https://forums.kodeco.com/t/welcome-to-the-new-raywenderlich-com-ray-wenderlich/46191 "2019-11-19T02:44:32Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/6721-welcome-to-the-new-raywenderlich-com --- ## [Beginning Table Views · Conclusion | Ray Wenderlich](https://forums.kodeco.com/t/beginning-table-views-conclusion-ray-wenderlich/48362)
**Author:** [@bdmoakley](https://forums.kodeco.com/u/bdmoakley)\ **Replies:** 9\ **Last updated:** [January 9, 2020, 2:23pm UTC](https://forums.kodeco.com/t/beginning-table-views-conclusion-ray-wenderlich/48362 "2020-01-09T14:23:22Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5995-beginning-table-views/lessons/20 --- ## [Programming in Kotlin - Part 30: Challenge: Arrays | Ray Wenderlich](https://forums.kodeco.com/t/programming-in-kotlin-part-30-challenge-arrays-ray-wenderlich/40625)
**Author:** [@kevindmoore](https://forums.kodeco.com/u/kevindmoore)\ **Replies:** 9\ **Last updated:** [February 14, 2020, 4:23am UTC](https://forums.kodeco.com/t/programming-in-kotlin-part-30-challenge-arrays-ray-wenderlich/40625 "2020-02-14T04:23:49Z")
Practice using arrays on your own, through a hands-on challenge. This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4736-programming-in-kotlin/lessons/30 --- ## [JSON Decoding | raywenderlich.com](https://forums.kodeco.com/t/json-decoding-raywenderlich-com/107357)
**Author:** [@airjordan12345](https://forums.kodeco.com/u/airjordan12345)\ **Replies:** 10\ **Last updated:** [October 31, 2020, 1:11am UTC](https://forums.kodeco.com/t/json-decoding-raywenderlich-com/107357 "2020-10-31T01:11:28Z")
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/5429634-saving-data-in-ios/lessons/11 --- ## [Unit Tests | raywenderlich.com](https://forums.kodeco.com/t/unit-tests-raywenderlich-com/141715)
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