• What are the transforming operators in RxSwift

    • Map

      • Transform element to other, just like map in Swift

    • FlatMap

      • Generate a new type of Observable to each element, and merge all the new Observables and subscribe to it
      • Be careful, any observable sending error will make the terminate the observable

    • FlatMapLatest

      • Generate a new type of Observable to each element, and only subscribe to the newest Observable
      • You can use this to deal with error events and filter them

    • Materialize

      • Observe to events of an observable

    • Dematerialize

      • Get element from event, used with Materialize
  • How to use SwiftRichString to generate attributes string
    • Create a style object and call setStyle on string 
      let style = Style {
$0.color = UIColor.white
$0.alignment = .center
....
}
let hello = "Hello".set(style: Style)
let world = "world".set(style: Style)
print(hello + world)
    • You don’t need to remember all those keys.font congratulations