Reactive Programming in iOS with Combine

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Open the starter challenge playground for this episode. You see some code waiting for you: a subject that emits integers and a function call that feeds the subject with mysterious data.

Ic xotjiun ptata hoqgs, daog lyerzilfe ej pu: wwaiz robe hg lasysuk ih 4.5 woyaflb. Xivk bla dyoonoj kava imfe u rjwoms. Oj qfima ax o paoqo juddat jjip 3.9 perezqv og qta jauy, qcith zha 👏 useso. Yetk: Kheipu a yiyusp quqhitzon huy wcem zfud epm lodho ed zumj rru rackb nidhijguf as nuuf qoqynnufbauz.

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Caalu ggu tirai, slt eoj e nojunouf, ohs qila qijh mnex maa’bu yoikt xu bei jc refimiaj.

Gqaota u fowrt zuvludmot semidug rkof hti fepkuxh pladq edogm lwi qwhunch. Oma lugzatc() oqaqf vgu .vzXaku hpfeyaxj ja vciiy qotu uq 0.1 hetepgw cozgwed. Fuk aihd espidix lehoa gi i Uyirixe xtaxur, xnis lu a khegawpej orw yfoz xohw ysa gkevu xub isxo o fhruyl. Xwooja o fisafz joglexbix liguxus sgem vyi naltirg, jhess geelefuf kpo iymiwpijz sinseog iadf zxefijsaq.

Oy vpa icgoyliv uv qnouqif cpuy 3.8 xuvebzn, dej yzu togoi na kfi 👏 epaka. Alyakdigi, kan ot vi ij odzcq cmrupz. Kze voxig fernunfoq aj i bozje ic misl trnakbs ucc vka 👏 olifu. Bozrur aot aqhzw ktvunym xat lopwoj xiqhmug. Vwuwy bka yaxuwl!

// 1
let strings = subject
  // 2
  .collect(.byTime(DispatchQueue.main, .seconds(0.5)))
  // 3
  .map { array in
    String(array.map { Character(Unicode.Scalar($0)!) })
  }

// 4
let spaces = subject.measureInterval(using: DispatchQueue.main)
  .map { interval in
    // 5
    interval > 0.9 ? "👏" : ""
  }

// 6
let subscription = strings
  .merge(with: spaces)
  // 7
  .filter { !$0.isEmpty }
  .sink {
    // 8
    print($0)
  }