ayodejiayankola / MyRXSWIFTModule

Compliation of my personal Learning and Resouce on RXSWIFT

MyRXSWIFTModule

##RXRelay - Publish relay and behaviour relay comes through this

Segue navigation prevents decoupling and de modulisaration

Coordinator is a builder pattern type

• Protocols in RXSwift can be used to instantiate view Controller
• Driver is a property that always runs in the main thread - it will always replay the last value without error out

1. Subjects are both observers and observables
2. Reactive Functional Programming 3.## Functional Programming
   1. Immuntablity - Variables states cannot be changed against declarative/imperative/ object oriented programming
   2. Mutable state - issues around concurrency , race conditions, dead locks - something is waiting /depending on something
   3. First class and higher order functions - A function that can take a function and return another function. e.g filter, map , reduce .
   4. Pure function - Will always produce the same output when given the same input - the function creates zero side effects outside of it
   5. Rxswift = Notification Center + Delegate pattern + Grand Central Dispatch + Closures in an asynchronous manner
   6. Cocoa pod - Dependency manager used to integrate external Framework with your app
   7. Observables is also a sequence- can emit values - you can subscribe it to and get an event
   8. A tap is also an event that can be emitted from a sequence- The event will eventually finish / error out/ give up - The completed state of the observable
   9. The whole idea of observable is that I can subscribe to it to get events
   10. For example, I can subscribe to the value of a slider control and when some moves the slider, I can get the updated value
   11. Sequence emitting values, I get them
   12. let observable3 = Observable.of([1,2,3]) // of - observable will function on the array
   13. let observable4 = Observable.from([1,2,3,4,5]) // from -observable will function on the individual elements of the array rather than the wholearray
   14. Subscription makes observable useful - subscriptions are created on observables
   15. Subscription are to be disposed after use to prevent memory leak

Subjects

1. They are observable as well as the observer - They get an event and push it to the subscribers Publish subjects Behaviour Subjects Replay subjects variable (Depreciated)

   Behaviour relay (New Form of Subjects

Weak self - a closure can be called at a point