Beginning RxSwift - Part 10: Challenge: Create | Ray Wenderlich Videos

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1

Put your new skills to work by creating a reactive algorithm to deal hands of blackjack.

This is a companion discussion topic for the original entry at https://www.raywenderlich.com/4743-beginning-rxswift/lessons/10
2

I’m getting problems with the lookup of the symbols for RxSwift in the playground for lesson 6 and lesson 8. This is the error for lesson 8:

Playground execution failed:

error: Couldn't lookup symbols:
  __T07RxSwift14PublishSubjectCMa
  __T07RxSwift10DisposeBagCACycfC
  __T07RxSwift14PublishSubjectCACyxGycfC
  __T07RxSwift10DisposeBagCMa
3

Hi @nightfox50, this is due to an issue with Xcode and CocoaPods. Here are some suggestions and I hope one of them resolves the issue for you. First, check that you have a simulator selected and not an actual device for your active scheme. If that doesn’t work, check out these threads for some possible other resolutions or alternative approaches…

4

Hello,

I’ve called deal function multiple times, one time, the points is over 21 so, it return with Error Busted. But it still continue to run the below deal function. I thought, once publishSubject emitted by Error, it should terminate. May I know why the function continue to run after returning with Error.

      deal(1)
      deal(2)
      deal(3)
      deal(4)
      deal(5)

---- PublishSubject ----

deal for card count = 1
dealHand: [("🃗", 7)] -> cards 🃗 with points 7

deal for card count = 2
dealHand: [(“🃓”, 3), (“🂷”, 7)] → cards 🃓🂷 with points 10

deal for card count = 3
busted: [("🃍", 10), ("🃅", 5), ("🂷", 7)]
**error busted**

deal for card count = 4
busted: [(“🃔”, 4), (“🂱”, 11), (“🃎”, 10), (“🂹”, 9)]

deal for card count = 5
busted: [("🂷", 7), ("🃊", 10), ("🃗", 7), ("🂴", 4), ("🃅", 5)]