Derkin / 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.

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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.

• Create node or mutable node
• Get the value of the node immediately
• Listen to the future value of the node
• Cancel listening to a node
• Connect two points
• Basic transformation of a node
  • map
  • filter
  • distinctUntilChanged
  • throttle
  • skip
  • take
  • deliverOn
  • delay
  • scan
• Combine multiple nodes
  • combine
  • merge
  • zip
• Branch a node to get multiple nodes
  • switch-case-default
  • if-then-else
• Synchronize values across multiple nodes
  • syncWith
  • Manual Sync
• High-order transformation of nodes
  • flatten
  • flattenMap
• Traversing nodes and edges
  • Simple Access
  • Accessor Mode

Learn more

1. Framework Overview

2. Basic Operations

3. Memory Management

4. How to Contribute

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, ReactiveCocoa, RxSwift Common APIs

Environment

Build Platform: macOS High Sierra 10.13.5

IDE: Xcode 9.4.1

Device: iPhone X 256G iOS 11.4(15F79)

Cases

1. Single stage operations, such as listener, map, filter, flattenMap, etc.
2. Multicast operations, such as combine, zip, merge, etc.
3. 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	1860665	30285707	7043007	7259761	6234540	63384482	19794457	12359669
ReactiveCocoa	4054261	74416369	45095903	44675757	209096028	143311669	13898969	53619799
RAC:EasyReact	217.89%	245.71%	640.29%	615.39%	3353.83%	226.10%	70.22%	433.83%

Summary

ReactiveCocoa's average time consuming is 725.41% times more than EasyReact.

EasyReact will compare benchmark with RxSwift when the Swift version open source recently.

Authors

William Zang, [e-mail]
姜沂, [e-mail]
Qin Hong, [e-mail]
SketchK, [e-mail]
zesming, [e-mail]
Zhiyu Wong, [e-mail]
johnnywjy, [e-mail]
qiezishu, [e-mail]

License

EasyReact is Apache Public License 2.0