{"id":5429795,"uri":"rw://betamax/collections/200","name":"Reactive Programming in iOS with Combine","description":"

Learn how to manage asynchronous work in iOS the reactive way: using Combine! Master the techniques and best practices to write declarative Combine code in playgrounds and complete iOS app projects.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2019-09-10T18:47:56.148Z","updated_at":"2021-02-28T19:30:29.764Z","duration":10336,"difficulty":"beginner","content_type":"collection","platform_id":90,"language_id":33,"editor_id":83,"group_id":null,"ordinal":null,"warnings":[],"related_content_id":null,"popularity":254.033333333333,"labelled_as_new":true,"average_rating":"5.0","rating_count":3,"professional":false,"body":null,"obfuscated_body":null,"display_attributes":{"concepts_covered":"

Reactive Programming
Combine Basics
Publishers
Subscribers
Transforming Operators: Collect, map, replaceNil and more
Filtering Operators: filter, removeDuplicates, ignoreOutput and more
Combining Operators: prepend, append and more
Timing Operators
Scheduling Operators
Sequencing Operators

","intended_audience":"

iOS developers who have some experience or who have worked their way through the previous courses in the iOS and Swift for Beginners learning path.

No previous reactive programming experience needed — we’ve got you covered!

"},"to_param":"5429795-reactive-programming-in-ios-with-combine","released_versions_data":[{"id":5429795,"url":"5429795-reactive-programming-in-ios-with-combine","description":"Swift 5.3, macOS 11.0, Xcode 12.2"}],"groups":[{"id":3765,"uri":"rw://betamax/parts/456","content_id":5429795,"ordinal":0,"name":"Getting Started","description":"~ ","created_at":"2021-01-28T20:40:12.028Z","updated_at":"2021-01-28T20:40:12.042Z","display_number":null,"contents":[{"id":5429867,"uri":"rw://betamax/videos/3120","name":"Introduction","description":"

Welcome to the course! Find out a bit about the history of reactive programming, and a high level overview of Combine.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":true,"created_at":"2019-09-10T18:48:40.030Z","updated_at":"2021-02-28T19:30:28.029Z","duration":437,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3765,"ordinal":1,"warnings":[],"related_content_id":null,"popularity":1346.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Introduction","duration_in_time":"7:17","identifier":"3120","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3120/bf3ac39e-990d-4d4d-9998-861297590a0f.png","released":true,"has_materials_url":true,"permission_tags":[]},{"id":20489690,"uri":"rw://betamax/videos/5024","name":"Publishers and Subscribers","description":"

Learn about Publishers and Subscribers, which are the endpoints of the Combine pipeline, and how they work with one another.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.103Z","updated_at":"2021-02-28T19:30:28.093Z","duration":537,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3765,"ordinal":2,"warnings":[],"related_content_id":null,"popularity":1183.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Publishers and Subscribers","duration_in_time":"8:57","identifier":"5024","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5024/ce79bc37-13e4-4cd7-8b66-acb5903a8ec6.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489691,"uri":"rw://betamax/videos/5025","name":"Subscriber Operators and Subjects","description":"

Learn about some built in operators for Subscribers as well as Subjects, which help connect the imperative and declarative world.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.138Z","updated_at":"2021-02-28T17:30:20.829Z","duration":711,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3765,"ordinal":3,"warnings":[],"related_content_id":null,"popularity":639.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Subscriber Operators and Subjects","duration_in_time":"11:51","identifier":"5025","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5025/833cc612-b34b-4c0c-9064-62344753d3ef.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489692,"uri":"rw://betamax/videos/5026","name":"Challenge: Create a Blackjack Dealer","description":"

In this hands-on challenge, use your knowledge of publishers and subscribers to create a blackjack dealer.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.171Z","updated_at":"2021-02-28T17:30:20.903Z","duration":372,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3765,"ordinal":4,"warnings":[],"related_content_id":null,"popularity":396.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Challenge: Create a Blackjack Dealer","duration_in_time":"6:12","identifier":"5026","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5026/09aaf32a-14db-46a7-a50e-3bc6af3c4611.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489693,"uri":"rw://betamax/videos/5027","name":"Conclusion","description":"

Recap what you learned about publishers and subscribers, and gear up for the rest of the course.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.200Z","updated_at":"2021-02-28T18:30:23.213Z","duration":79,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3765,"ordinal":5,"warnings":[],"related_content_id":null,"popularity":256.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Conclusion","duration_in_time":"1:19","identifier":"5027","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5027/35f69d10-9370-4a75-a0a6-2bfe5643a556.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]},{"id":3766,"uri":"rw://betamax/parts/457","content_id":5429795,"ordinal":1,"name":"Transforming & Filtering Operators","description":"~ ","created_at":"2021-01-28T20:40:12.310Z","updated_at":"2021-01-28T20:40:12.315Z","display_number":null,"contents":[{"id":20489694,"uri":"rw://betamax/videos/5028","name":"Introduction","description":"

Learn about what Operators are in Combine, and get an overview of which ones you’ll learn about in this part of the course.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.323Z","updated_at":"2021-02-28T19:30:28.276Z","duration":102,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3766,"ordinal":6,"warnings":[],"related_content_id":null,"popularity":256.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Introduction","duration_in_time":"1:42","identifier":"5028","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5028/b12650ba-1f6c-47c2-a74f-34020e103817.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489695,"uri":"rw://betamax/videos/5029","name":"Transforming Operators","description":"

Collect, map, replaceNil and replaceEmpty are basic operators that can be used to transform data into another form.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.352Z","updated_at":"2021-02-28T19:30:28.344Z","duration":548,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3766,"ordinal":7,"warnings":[],"related_content_id":null,"popularity":269.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Transforming Operators","duration_in_time":"9:08","identifier":"5029","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5029/1652c2bb-9163-4f0b-b9c5-febf54a0e7e0.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489696,"uri":"rw://betamax/videos/5030","name":"More Transforming Operators","description":"

Learn about how the scan and flatMap operators can be used in your code to do more advanced transformations.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.412Z","updated_at":"2021-02-28T19:30:28.424Z","duration":479,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3766,"ordinal":8,"warnings":[],"related_content_id":null,"popularity":278.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · More Transforming Operators","duration_in_time":"7:59","identifier":"5030","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5030/76d16eba-8753-4e38-a281-a6a01bfc94a7.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489699,"uri":"rw://betamax/videos/5031","name":"Challenge: Create a Phone Number Lookup","description":"

In this hands-on challenge use your knowledge of transforming operators to lookup a phone number in a contact book.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.461Z","updated_at":"2021-02-28T19:30:28.483Z","duration":187,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3766,"ordinal":9,"warnings":[],"related_content_id":null,"popularity":236.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Challenge: Create a Phone Number Lookup","duration_in_time":"3:07","identifier":"5031","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5031/e49a056e-c223-4ef8-9dd5-d2428c3c8e5d.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489700,"uri":"rw://betamax/videos/5032","name":"Filtering Operators","description":"

Basic filtering operators like filter, removeDuplicates, ignoreOutput and compactMap can be used to narrow down which values get sent downstream to subscribers.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.494Z","updated_at":"2021-02-28T18:30:23.665Z","duration":466,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3766,"ordinal":10,"warnings":[],"related_content_id":null,"popularity":219.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Filtering Operators","duration_in_time":"7:46","identifier":"5032","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5032/52e32792-556f-45cc-911f-d5eef11dd3b7.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489701,"uri":"rw://betamax/videos/5033","name":"More Filtering Operators","description":"

Learn about more filtering operators: first(where:), last(where:), drop, and prefix, which give you additional ways to keep values from traveling downstream.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.526Z","updated_at":"2021-02-28T18:30:23.757Z","duration":505,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3766,"ordinal":11,"warnings":[],"related_content_id":null,"popularity":171.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · More Filtering Operators","duration_in_time":"8:25","identifier":"5033","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5033/e7897825-250b-4fa2-9813-a54545a281af.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489703,"uri":"rw://betamax/videos/5034","name":"Challenge: Filter All the Things","description":"

In this challenge, use your knowledge of filtering operators to slim down an array of numbers to a predefined set of values.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.554Z","updated_at":"2021-02-28T18:30:23.839Z","duration":116,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3766,"ordinal":12,"warnings":[],"related_content_id":null,"popularity":156.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Challenge: Filter All the Things","duration_in_time":"1:56","identifier":"5034","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5034/da5d15d8-6bbc-41a5-a2d5-821c55f1cc5a.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489705,"uri":"rw://betamax/videos/5035","name":"Conclusion","description":"

Review what you’ve learned about transforming and filtering operators.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.587Z","updated_at":"2021-02-28T19:30:28.675Z","duration":36,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3766,"ordinal":13,"warnings":[],"related_content_id":null,"popularity":136.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Conclusion","duration_in_time":"0:36","identifier":"5035","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5035/d3b77a91-a26e-4eb3-b2a0-35020f048d71.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]},{"id":3767,"uri":"rw://betamax/parts/458","content_id":5429795,"ordinal":2,"name":"Combining Operators","description":"~ ","created_at":"2021-01-28T20:40:12.752Z","updated_at":"2021-01-28T20:40:12.759Z","display_number":null,"contents":[{"id":20489706,"uri":"rw://betamax/videos/5036","name":"Introduction","description":"

You’ve learned about several operators already, but there’s more! In this part, you’ll learn about combining operators.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.772Z","updated_at":"2021-02-28T12:30:21.697Z","duration":48,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3767,"ordinal":14,"warnings":[],"related_content_id":null,"popularity":161.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Introduction","duration_in_time":"0:48","identifier":"5036","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5036/8a8097dc-bd2e-4206-9748-45d3175a3134.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489707,"uri":"rw://betamax/videos/5037","name":"Prepend","description":"

Discover the prepend family of operators, which consists of prepend(Output), prepend(Sequence), and prepend(Publisher).

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.813Z","updated_at":"2021-02-28T12:30:21.783Z","duration":561,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3767,"ordinal":15,"warnings":[],"related_content_id":null,"popularity":162.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Prepend","duration_in_time":"9:21","identifier":"5037","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5037/7f14542b-6f48-4c39-8211-a4efd737817e.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489708,"uri":"rw://betamax/videos/5038","name":"Append","description":"

Now check out the append family of operators, which consists of append(Output), append(Sequence), and append(Publisher).

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.847Z","updated_at":"2021-02-28T12:30:21.939Z","duration":501,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3767,"ordinal":16,"warnings":[],"related_content_id":null,"popularity":136.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Append","duration_in_time":"8:21","identifier":"5038","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5038/ef473f5c-e606-490a-938b-c6793c60b7fc.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489709,"uri":"rw://betamax/videos/5039","name":"Challenge: Append and Prepend","description":"

In this hands-on challenge, turn your old-school 7 digit phone number into a modern day number using combining operators.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.879Z","updated_at":"2021-02-28T12:30:22.023Z","duration":183,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3767,"ordinal":17,"warnings":[],"related_content_id":null,"popularity":124.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Challenge: Append and Prepend","duration_in_time":"3:03","identifier":"5039","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5039/3e7db6d1-6750-4e30-9d58-b41cd54809e9.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489710,"uri":"rw://betamax/videos/5040","name":"More Combining Operators","description":"

Learn how you can use operators such as switchToLatest, merge(with:), combineLatest and zip to perform more advanced combinations of data from publisher.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.916Z","updated_at":"2021-02-28T19:30:28.926Z","duration":117,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3767,"ordinal":18,"warnings":[],"related_content_id":null,"popularity":133.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · More Combining Operators","duration_in_time":"1:57","identifier":"5040","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5040/8132c176-fda6-4b96-b6dc-18fe71e5d6b1.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489711,"uri":"rw://betamax/videos/5041","name":"Operator Examples","description":"

In this episode, see examples of switchToLatest, merge(with:), combineLatest and zip in a Swift playground.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.960Z","updated_at":"2021-02-28T19:30:28.996Z","duration":741,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3767,"ordinal":19,"warnings":[],"related_content_id":null,"popularity":128.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Operator Examples","duration_in_time":"12:21","identifier":"5041","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5041/9e4f5271-648e-4788-8e98-699d22eaf7ff.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489712,"uri":"rw://betamax/videos/5042","name":"Challenge: Advanced Combining","description":"

In this hands-on challenge, build upon the last challenge to interleave multiple arrays of data together.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:12.995Z","updated_at":"2021-02-28T19:30:29.060Z","duration":210,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3767,"ordinal":20,"warnings":[],"related_content_id":null,"popularity":119.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Challenge: Advanced Combining","duration_in_time":"3:30","identifier":"5042","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5042/74d25c7b-c79a-4479-a738-2c7141f9341c.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489714,"uri":"rw://betamax/videos/5043","name":"Conclusion","description":"

Let’s recap the different combining operators you learned about in this part of the course.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.031Z","updated_at":"2021-02-28T19:30:29.141Z","duration":47,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3767,"ordinal":21,"warnings":[],"related_content_id":null,"popularity":111.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Conclusion","duration_in_time":"0:47","identifier":"5043","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5043/3e00447d-fb28-4416-b9b5-65c2f3f7d138.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]},{"id":3768,"uri":"rw://betamax/parts/459","content_id":5429795,"ordinal":3,"name":"Timing, Scheduling and Sequencing Operators","description":"~ ","created_at":"2021-01-28T20:40:13.204Z","updated_at":"2021-02-24T11:57:12.131Z","display_number":null,"contents":[{"id":20489716,"uri":"rw://betamax/videos/5044","name":"Introduction","description":"

Learn about the final set of operators we’ll cover: timing, scheduling and sequencing operators.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.218Z","updated_at":"2021-02-28T19:30:29.207Z","duration":42,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":22,"warnings":[],"related_content_id":null,"popularity":139.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Introduction","duration_in_time":"0:42","identifier":"5044","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5044/7afb50e6-0e20-4461-9e99-68992aed14d7.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489717,"uri":"rw://betamax/videos/5045","name":"Delay and Collect","description":"

The basic timing operators like delay and collect do just what they advertise - delay values from a publisher and collect a series of emitted values.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.250Z","updated_at":"2021-02-28T19:30:29.283Z","duration":643,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":23,"warnings":[],"related_content_id":null,"popularity":148.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Delay and Collect","duration_in_time":"10:43","identifier":"5045","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5045/9cdac79c-a263-4945-a3cc-7049f80a9ab7.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489718,"uri":"rw://betamax/videos/5046","name":"Debounce and Throttle","description":"

The debounce and throttle operators come in handy when collecting data such as a person typing, keeping you from checking after every keystroke.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.284Z","updated_at":"2021-02-28T19:30:29.368Z","duration":628,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":24,"warnings":[],"related_content_id":null,"popularity":130.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Debounce and Throttle","duration_in_time":"10:28","identifier":"5046","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5046/c35705fc-a7b1-4df4-bd99-e4b15a73554b.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489719,"uri":"rw://betamax/videos/5047","name":"Timeout and measureInterval","description":"

Learn how the timeout operators can be used to cause a publisher to time out and complete, and measureInterval to measure the interval between emissions.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.324Z","updated_at":"2021-02-28T19:30:29.451Z","duration":617,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":25,"warnings":[],"related_content_id":null,"popularity":133.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Timeout and measureInterval","duration_in_time":"10:17","identifier":"5047","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5047/e0258df3-7777-4f4f-b1dc-0b52586a73ad.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489720,"uri":"rw://betamax/videos/5048","name":"Challenge: Collect Values by Time","description":"

In this hands-on challenge, use your knowledge of timing operators to decode a message from a set of mysterious data.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.360Z","updated_at":"2021-02-28T05:30:20.780Z","duration":193,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":26,"warnings":[],"related_content_id":null,"popularity":86.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Challenge: Collect Values by Time","duration_in_time":"3:13","identifier":"5048","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5048/b46a4ba7-5efd-45b6-ac27-2ef96f16c04f.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489721,"uri":"rw://betamax/videos/5049","name":"Scheduling Operators","description":"

Learn about the schedule and receive operators, which can be used to tell Combine which Scheduler to use when running the operations.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.395Z","updated_at":"2021-02-27T06:30:20.876Z","duration":406,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":27,"warnings":[],"related_content_id":null,"popularity":103.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Scheduling Operators","duration_in_time":"6:46","identifier":"5049","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5049/713243ab-488c-4059-af85-511943c1ff03.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489722,"uri":"rw://betamax/videos/5050","name":"Sequencing Operators","description":"

Sequencing operators such as max, min, count and output can give you information on the sequence of emitted values as a whole.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.433Z","updated_at":"2021-02-27T06:30:20.959Z","duration":539,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":28,"warnings":[],"related_content_id":null,"popularity":90.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Sequencing Operators","duration_in_time":"8:59","identifier":"5050","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5050/898b2010-d2c4-4631-80e2-2c75f9cdf729.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489723,"uri":"rw://betamax/videos/5051","name":"Challenge: Sequence Operators","description":"

Challenge time! Use your knowledge of sequence operators to give a golfer a report on their golf game.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.462Z","updated_at":"2021-02-27T06:30:21.082Z","duration":158,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":29,"warnings":[],"related_content_id":null,"popularity":84.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Challenge: Sequence Operators","duration_in_time":"2:38","identifier":"5051","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5051/53d2216d-e7e7-49ca-9c99-13ab83798f9a.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]},{"id":20489724,"uri":"rw://betamax/videos/5052","name":"Conclusion","description":"

Congrats on finishing the course! Review what you’ve learned and find out where you can go to learn more about Combine.

","released_at":"2021-02-04T00:00:00.000Z","searchable":true,"free":false,"created_at":"2021-01-28T20:40:13.490Z","updated_at":"2021-02-27T06:30:21.149Z","duration":127,"difficulty":"beginner","content_type":"episode","platform_id":90,"language_id":33,"editor_id":83,"group_id":3768,"ordinal":30,"warnings":[],"related_content_id":null,"popularity":93.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"episode_title_with_course":"Reactive Programming in iOS with Combine · Conclusion","duration_in_time":"2:07","identifier":"5052","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/5052/8a3dcbbd-ed2a-4078-9fdd-0f60ef482f09.png","released":true,"has_materials_url":true,"permission_tags":["stream-beginner-videos"]}]}]}

All videos. All books. One low price.

All videos. All books.
One low price.