Meituan-Dianping / Easyreact
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What is EasyReact
EasyReact is an easy-to-use reactive programming framework.
Why use EasyReact
Are you confused by the functors, applicatives, and monads in RxSwift and ReactiveCocoa? It doesn't matter, the concepts are so complicated that not many developers actually use them in normal projects. Is there an easy-to-use way to use reactive programming? EasyReact is born for this reason.
Features
Note: The "Node" listed below refer to EZRNode, a unified representation of various values (all object types) in EasyReact.
- [x] Create node or mutable node
- [x] Get the value of the node immediately
- [x] Listen to the future value of the node
- [x] Cancel listening to a node
- [x] Connect two points
- [x] Basic transformation of a node
- [x] Combine multiple nodes
- [x] Branch a node to get multiple nodes
- [x] switch-case-default
- [x] if-then-else
- [x] Synchronize values across multiple nodes
- [x] syncWith
- [x] Manual Sync
- [x] High-order transformation of nodes
- [x] flatten
- [x] flattenMap
- [x] Traversing nodes and edges
- [x] Simple Access
- [x] Accessor Mode
Learn more
Compare other Functional Reactive libraries (e.g. ReactiveCocoa or ReactiveX)
| Project | EasyReact | ReactiveCocoa | ReactiveX |
|---|---|---|---|
| Core idea | Graph theory and object-oriented programming | Functional programming | Functional programming and generic programming |
| Propagation variability | ✅ | ❌ | ❌ |
| Basic transformation | ✅ | ✅ | ✅ |
| Combination transformation | ✅ | ✅ | ✅ |
| High-order transformation | ✅ | ✅ | ✅ |
| Traversal node/signal | ✅ | ❌ | ❌ |
| Multi-language support | Objective-C (Other language versions will open source in the future) |
Objective-C, Swift | Many language versions |
| Performance | faster | slow | fastest |
| Chinese document support | ✅ | ❌ | ❌ |
| Debugging tools |
Topology display More rich dynamic debugging tools(Coming soon) |
Instrument | ❌ |
System Requirements
- iOS 8.0 +
- Xcode 8.0 +
How to run the example project
git clone this repo，excute pod install in Example/, then open EasyReact.xcworkspace.
Installation
CocoaPods
Add the following content in Podfile
pod 'EasyReact'
Then execute pod install
How to use (For a more detailed example, please see the test specs in the example project Tests/)
Unit Test
EasyReact contains a complete unit test with the relevant code in the Example/Tests folder. You can open the sample project and execute the Test command to run these unit tests.
Time-consuming Benchmarking with EasyReact and ReactiveCocoa Common APIs
Environment
Build Platform: macOS Mojave 10.14
IDE: Xcode 10.0(10A255)
Device: iPhone XS Max 256G iOS 12.0(16A366)
Cases
- Single stage operations, such as listener, map, filter, flattenMap, etc.
- Multicast operations, such as combine, zip, merge, etc.
- syncWith operations
The scale of the test is based on 10 operating objects and 1000 triggers. For example, the listener method has 10 listeners and repeats the action of sending the value 1000 times. The unit of time is ns.
Result data
Repeat the above experiment 10 times to get the data as follows:
| name | listener | map | filter | flattenMap | combine | zip | merge | syncWith |
|---|---|---|---|---|---|---|---|---|
| EasyReact | 4218689 | 26615802 | 9872381 | 9896752 | 5744164 | 48405085 | 29639206 | 11846827 |
| ReactiveCocoa | 2263981 | 42883385 | 28768289 | 28810331 | 127882031 | 82689281 | 6809210 | 30935277 |
| RAC:EasyReact | 53.7% | 161.1% | 291.4% | 291.1% | 2226.3% | 170.8% | 23.0% | 261.1% |
Summary
ReactiveCocoa's average time consuming is 434.8% times more than EasyReact.
EasyReact will compare benchmark with RxSwift when the Swift version open source recently.
Authors
William Zang, [email protected]
姜沂, [email protected]
Qin Hong, [email protected]
SketchK, [email protected]
zesming, [email protected]
Zhiyu Wong, [email protected]
johnnywjy, [email protected]
qiezishu, [email protected]
License
EasyReact is Apache Public License 2.0