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RxSwift is one of those things you have to try yourself to really start appreciating. It’s the one piece of the puzzle that I was missing to glue all the patterns like MVVM, VIPER, Coordinators/Routing.

It’s hard to express what RxSwift really is, because it does a lot. In general it serves as a great observer pattern with a mix of functional and reactive programming. It’s important to say what it isn’t and it isn’t Functional Reactive Programming in it’s original definition. It’s heavily inspired on FRP, so we can say that it contains Reactive and Functional features.

If you don’t know what FRP is, don’t worry for now – you’ll be able to discover it yourself in this tutorial. You’ll gradually learn what Functional and Reactive mean in the FRP.

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