[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"project-8050":3},{"id":4,"name":5,"fullName":6,"owner":7,"repo":5,"description":8,"homepage":9,"htmlUrl":10,"language":11,"languages":10,"totalLinesOfCode":10,"stars":12,"forks":13,"watchers":14,"openIssues":15,"contributorsCount":16,"subscribersCount":16,"size":16,"stars1d":16,"stars7d":16,"stars30d":17,"stars90d":16,"forks30d":16,"starsTrendScore":16,"compositeScore":18,"rankGlobal":10,"rankLanguage":10,"license":19,"archived":20,"fork":20,"defaultBranch":21,"hasWiki":22,"hasPages":20,"topics":23,"createdAt":10,"pushedAt":10,"updatedAt":30,"readmeContent":31,"aiSummary":32,"trendingCount":16,"starSnapshotCount":16,"syncStatus":33,"lastSyncTime":34,"discoverSource":35},8050,"rxswift-to-combine-cheatsheet","CombineCommunity\u002Frxswift-to-combine-cheatsheet","CombineCommunity","RxSwift to Apple’s Combine Cheat Sheet","https:\u002F\u002Fmedium.com\u002Fgett-engineering\u002Frxswift-to-apples-combine-cheat-sheet-e9ce32b14c5b",null,"Ruby",2087,129,37,5,0,1,28.34,"MIT License",false,"master",true,[24,25,26,27,28,29],"apple","combine","reactive","reactive-programming","rxswift","swiftui","2026-06-12 02:01:48","# RxSwift to Combine Cheatsheet\nThis is a Cheatsheet for [RxSwift](https:\u002F\u002Fgithub.com\u002FReactiveX\u002FRxSwift) developers interested in Apple's new [Combine](https:\u002F\u002Fdeveloper.apple.com\u002Fdocumentation\u002Fcombine) framework.\n\nIt's based on the following blog post: [https:\u002F\u002Fmedium.com\u002Fgett-engineering\u002Frxswift-to-apples-combine-cheat-sheet-e9ce32b14c5b](https:\u002F\u002Fmedium.com\u002Fgett-engineering\u002Frxswift-to-apples-combine-cheat-sheet-e9ce32b14c5b)\n\n## [Basics](Data\u002Fbasics.csv)\n\n| | RxSwift | Combine |\n|-----------------------|----------------------------------|--------------------------------------------|\n| Deployment Target | iOS 8.0+ | iOS 13.0+ |\n| Platforms supported | iOS, macOS, tvOS, watchOS, Linux | iOS, macOS, tvOS, watchOS, UIKit for Mac ¹ |\n| Spec | Reactive Extensions (ReactiveX) | Reactive Streams (+ adjustments) |\n| Framework Consumption | Third-party | First-party (built-in) |\n| Maintained by | Open-Source \u002F Community | Apple |\n| UI Bindings | RxCocoa | SwiftUI ² |\n\n\n## [Core Components](Data\u002Fcore_components.csv)\n\n| RxSwift | Combine | Notes |\n|---------------------------|---------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| AnyObserver | AnySubscriber | |\n| BehaviorRelay | ❌ | Simple wrapper around BehaviorSubject, could be easily recreated in Combine |\n| BehaviorSubject | CurrentValueSubject | This seems to be the type that holds @State under the hood |\n| Completable | ❌ | |\n| CompositeDisposable | ❌ | |\n| ConnectableObservableType | ConnectablePublisher | |\n| Disposable | Cancellable | |\n| DisposeBag | A collection of AnyCancellables | Call anyCancellable.store(in: &collection), where collection can be an array, a set, or any other RangeReplaceableCollection |\n| Driver | ObservableObject | Both guarantee no failure, but Driver guarantees delivery on Main Thread. In Combine, SwiftUI recreates the entire view hierarachy on the Main Thread, instead. |\n| Maybe | Optional.Publisher | |\n| Observable | Publisher | |\n| Observer | Subscriber | |\n| PublishRelay | ❌ | Simple wrapper around PublishSubject, could be easily recreated in Combine |\n| PublishSubject | PassthroughSubject | |\n| ReplaySubject | ❌ | |\n| ScheduledDisposable | ❌ | |\n| SchedulerType | Scheduler | |\n| SerialDisposable | ❌ | |\n| Signal | ❌ | |\n| Single | Deferred + Future | Future has to be wrapped in a Deferred, or its greedy as opposed to Single's laziness |\n| SubjectType | Subject | |\n| TestScheduler | ❌ | There doesn't seem to be an existing testing scheduler for Combine code |\n\n\n## [Operators](Data\u002Foperators.csv)\n\n| RxSwift | Combine | Notes |\n|-----------------------|------------------------------------------|----------------------------------------------------------------------------------------------------------|\n| allSatisfy | allSatisfy | |\n| amb() | ❌ | |\n| asObservable() | eraseToAnyPublisher() | |\n| asObserver() | ❌ | |\n| bind(to:) | `assign(to:on:)` | Assign uses a KeyPath which is really nice and useful. RxSwift needs a Binder \u002F ObserverType to bind to. |\n| buffer | buffer | |\n| catch | catch | |\n| catchAndReturn | replaceError(with:) | |\n| combineLatest | combineLatest, tryCombineLatest | |\n| compactMap | compactMap, tryCompactMap | |\n| concat | append, prepend | |\n| concatMap | ❌ | |\n| contains | contains | |\n| count | count | |\n| create | ❌ | Apple removed AnyPublisher with a closure in Xcode 11 beta 3 :-( |\n| debounce | debounce | |\n| debug | print | |\n| deferred | Deferred | |\n| delay | delay | |\n| delaySubscription | ❌ | |\n| dematerialize | ❌ | |\n| distinctUntilChanged | removeDuplicates, tryRemoveDuplicates | |\n| do | handleEvents | |\n| element(at:) | output(at:) | |\n| empty | Empty(completeImmediately: true) | |\n| enumerated | ❌ | |\n| error | Fail | |\n| filter | filter, tryFilter | |\n| first | first, tryFirst | |\n| first(where:) | first(where:), tryFirst(where:) | |\n| flatMap | flatMap | |\n| flatMapFirst | ❌ | |\n| flatMapLatest | switchToLatest | |\n| from(optional:) | Optional.Publisher(_ output:) | |\n| groupBy | ❌ | |\n| ifEmpty(default:) | replaceEmpty(with:) | |\n| ifEmpty(switchTo:) | ❌ | Could be achieved with composition - replaceEmpty(with: publisher).switchToLatest() |\n| ignoreElements | ignoreOutput | |\n| interval | ❌ | |\n| just | Just | |\n| last(where:) | last(where:), tryLast(where:) | |\n| map | map, tryMap | |\n| materialize | ❌ | |\n| max | max | |\n| merge | merge, tryMerge | |\n| merge(maxConcurrent:) | flatMap(maxPublishers:) | |\n| min | min | |\n| multicast | multicast | |\n| never | Empty(completeImmediately: false) | |\n| observe(on:) | receive(on:) | |\n| of | Sequence.publisher | `publisher` property on any `Sequence` or you can use `Publishers.Sequence(sequence:)` directly |\n| publish | makeConnectable | |\n| range | ❌ | |\n| reduce | reduce, tryReduce | |\n| refCount | autoconnect | |\n| repeatElement | ❌ | |\n| retry(when:) | ❌ | |\n| retry, retry(3) | retry, retry(3) | |\n| sample | ❌ | |\n| scan | scan, tryScan | |\n| share | share | There’s no replay or scope in Combine. Could be “faked” with multicast. |\n| skip(3) | dropFirst(3) | |\n| skip(until:) | drop(untilOutputFrom:) | |\n| skip(while:) | drop(while:), tryDrop(while:) | |\n| startWith | prepend | |\n| subscribe | sink | |\n| subscribe(on:) | subscribe(on:) | RxSwift uses Schedulers. Combine uses RunLoop, DispatchQueue, and OperationQueue. |\n| take(1) | prefix(1) | |\n| take(until:) | prefix(untilOutputFrom:) | |\n| take(while:) | prefix(while:), tryPrefix(while:) | |\n| takeLast | last | |\n| throttle | throttle | |\n| timeInterval | measureInterval | |\n| timeout | timeout | |\n| timer | Timer.publish | |\n| toArray() | collect() | |\n| window | collect(Publishers.TimeGroupingStrategy) | Combine has a TimeGroupingStrategy.byTimeOrCount that could be used as a window. |\n| withLatestFrom | ❌ | |\n| zip | zip | |\n\n\n# Contributing\nAdd any data\u002Foperators to the appropriate CSV files in the **Data** folder, run `bundle install` and `generate.rb`.\n\nFinally, commit the changes and submit a Pull Request.","该项目提供了一份从RxSwift迁移到Apple的Combine框架的速查表，旨在帮助开发者快速理解和转换代码。它详细对比了RxSwift与Combine在基础特性、核心组件等方面的异同，比如部署目标、支持平台以及UI绑定方式等，并指出了两者之间的对应关系和差异点。适合于正在考虑或已经决定将现有基于RxSwift的应用迁移到Combine框架下的iOS\u002FmacOS开发者使用，尤其是那些希望利用苹果原生技术栈优势进行开发的人士。",2,"2026-06-11 03:15:50","top_language"]