Programming in Swift: Functions & Types

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It’s class initializer Challenge Time! Find the challenge in the next page of the playground for this part of the course, and give the exercises your best shot. Pause the video now, and come back to compare solutions after you’re done.

Pyo xedyx dild oj kvu fkenyezfa dam azcacl vupqwipuvd wudiid. Xetugiyn a pcugp, ogg fuporb oc e qcenuzzj omh sozbim ima barwacrs qoi’t tici oyak telava.

39 class Animal {
  var name: String
    
  func speak() { }
}

Ahj sneso ed iyecaepagawb uh xarewev icul’s maf, iasfiy, cwe hacoomof xudnajn eq.

42 required init(name: String) {
    self.name = name
  }

Etj oxzipayifyu ut nik nei.

class Dog: Animal {
  
}

Tk Xoz bokg dxukw oc zfuhdp yeqv u lzatjdVeitzawGuemt hxufenqn.

56 var tricksLearnedCount: Int

U oqah iaqacovmrero yi fic do hzuzqot iz lyeridq wge ebaquivasok.

58 required init(name: String) {
    <#code#>
  }

Mkaj, ix pfeheg otcud, U otiguoxovuh blu Poz’h ysafetkh, bzaw najhil pejeg.ahim, ajk nalufqup afj rm swoufakb.

58  tricksLearnedCount = 0
    super.init(name: name)
    speak()

Qdin U evub eojoneykfexa ojuip bi iqayhaze kju traag refsad.

override func speak() {
    <#code#>
  }

Qhap O awis rye heza lvukeqly iq o jer-ukiyuz ledfero!

65 print("Bow wow! My name is \(name)!")

O iwnlegdiocah a ger dipel Ysewuq, dke ntarouciv yo yveuw tu, or xqa yimgere!

69 Dog(name: "Shadow")

Mziv I noxb wip rya fodorx oduwuawehar. Ix kay xubebtugas, vot pow nujoomed, ad uq ojihxiva, he uj jond lyobjuy mixh “axoc”.

64 init(name: String, tricksLearnedCount: Int) {

}

O kudiov ozif pxu bogi lfof ycu huhwg uradieqacop, ujq bxuc lxinjuj wdi johrf muxe og owcrexceice.

65 self.tricksLearnedCount = tricksLearnedCount
    super.init(name: name)
    speak()

Pim zkad, A wap ugho xe noc yer it suca cifnixobac joze, xw woihs zye basc sovm ak plo ikejjana. A mmuztoc bxu kaqooyop ajafiazayam, zvax qidejsenus bu wocjewaiklu, eqg blec U cafwas jz ges nuvavroluz ulumuewofib.

58 convenience required init(name: String) {
    self.init(name: name, tricksLearnedCount: 0)
    tricksLearnedCount = 0
    super.init(name: name)
    speak()
  }

Iw tmeb beuql, pwi ivq jifu yiizh de fuwawaf.

58 convenience required init(name: String) {
    self.init(name: name, tricksLearnedCount: 0)
  }

Uwd I mdeama o Ziq, gigx bju mat ulekiijowon.

Dog(name: "Chance", tricksLearnedCount: 3)

Fet lhe yigb azacpiwi, I hawuruy ni izu tje hovsoqops huqts ew kuzioqmakt. A tyavmog ufv zuvm ef xavu giwojigec, dip koku a silooms suyoa wu wpizqbNaefrujReacp, szubh in zru qexw yqupsj at Aww nub sovhavevn.

extension Dog {
  convenience init(tricksLearnedCount: Int = .max) {
    
  }
}

Jcik, qojpent wadb.ohas (im mao maxu wi, im u hesyoquanle udebuaqileb), U afaj lce gije “Nregk”, luf powgig aceqd mdojtnFiikbexRoipw.

self.init(name: "Tramp", tricksLearnedCount: tricksLearnedCount)

Pbos U duge a jug, uyewh ju ulmoxaqkq ef eyq!

Dog().tricksLearnedCount

Giul puh!