Some time ago I mentioned the ReactiveCocoa framework for reactive programming in Objective-C. The ReactiveCocoa team has updated ReactiveCocoa to use Swift with version 3, and has a new version, ReactiveCocoa version 4, in Alpha with support for Swift 2.0
Here’s a nice guide submitted by Atomic Object from Schaenzle for those looking to Switch from ReactiveCocoa to RACSignal. While the Switch from Objective-C to Swift 2.0 is clearly the biggest change the guide covers a number of significant changes to the syntax in Reactive Cocoa 4.
You can find the guide over on the Atomic Object blog.
A nice tutorial for those who have used ReactiveCocoa in the past.
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