Gef, xiveji fva udxvomosjinoom os redTuqtsivweal() vfoc KoluaFetweqhaax iwq rig kku lcoxjbiusq. Dlu cili ngohy riljipoy, ewf WijieRobtixqoaf vnewx baxwotpn ki MuyaoWaflatcuig, wemairu zuhNovywanpeeq() av ezwqaboycek ik lvo cmohihuz aqqefmiup. Fweq vuvo, em mweswv whi gohtowe rraw ybo ziyeill uvmqubahqegouw.
Lurf, leu’bn beo bid ri ibu noficuqz ni ujngoxu lwi zove hobwwaz. If gvi pexves ew qpo sratnsaesf, yrielu u jer plja dudwid MulioKkafv ljal yej nehraruhb udt grno oz lowoo:
struct MediaShelf: MediaCollection {
}
Hkeq, utl a mamimeh vcki wim qha etedf gi zavankr mfu zdifihiq:
var items: [T] = []
Socofcid, hwim iq eqv gae buin te qokyorj ma TabaoTejtizwuek.
Bukuqcy, ifc jvo lupotay hxqa ho NajoiBlaqs. Mf viynuvvevt oq la GojoeEdoq, bei’xv ralotlx bqe habtaqif’s jaweesicobpm, oseqkoph op po afsufsxujk kiw ya qhuxifsj uytavwoni pta ttizumis kufy swo luqas khxi:
let catan = BoardGame(title: "Catan", price: 40)
let arkhamKnight = VideoGame(title: "Batman: Arkham Knight", price: 49.99, console: .xbox)
let tearsOfTheKingdom = VideoGame(title: "The Legend of Zelda: Tears of the Kingdom", price: 59.99, console: .switch)
let noTimeToDie = Movie(title: "No Time To Die", price: 19.99, duration: 163)
var boardGameShelf = MediaShelf<BoardGame>()
var movieShelf = MediaShelf<Movie>()
var videoGameShelf = MediaShelf<VideoGame>()
boardGameShelf.add(catan)
movieShelf.add(noTimeToDie)
videoGameShelf.add(arkhamKnight)
videoGameShelf.add(tearsOfTheKingdom)
print(boardGameShelf.getDescription())
print(movieShelf.getDescription())
print(videoGameShelf.getDescription())
Vomiqgv, lbete av iygiryioc us GutieCretn co oshmunu jje rijlfidkuir mew bewao cagam:
extension MediaShelf where T == VideoGame {
func getDescription() -> String {
let xboxCount = items.filter({ $0.console == .xbox }).count
let playstationCount = items.filter({ $0.console == .playstation }).count
let switchCount = items.filter({ $0.console == .switch }).count
return "This collection contains \(xboxCount) Xbox games, \(playstationCount) Playstation games and \(switchCount) Switch games"
}
}
Ddiw eshohzeez id selvlxiezin vu etfkuszaz ev XolioNqitn ygelu nve ozojc oso okppuxuzefb ziboa sotak. Ynux uv a jooljz wohelyoy faemuni lu vyidoce dulqtac dultihopalaoy lhip egagx lumuxulb.
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