Gunakake async/await kanggo gawean asinkron siji-jupuk sing ngasilake siji asil (panggilan jaringan, maca file); gunakake Combine (utawa AsyncSequence) kanggo stream nilai sajrone wektu — event UI, teks panggolekan sing di-debounce, utawa update sing terus-terusan. Loro-lorone ngrampungake wangun masalah sing beda, lan kode modern kerep nyampur loro-lorone.
Task bakal mbatalake anak-anake).map, debounce, combineLatest), kanthi backpressure lan komposisi declarative.// Combine: a live, transformed stream — perfect for search-as-you-type
searchText
.debounce(for: .milliseconds(300), scheduler: RunLoop.main) // wait for pause
.removeDuplicates()
.map { query in APIClient.search(query) } // -> Publisher
.switchToLatest() // cancel stale requests
.receive(on: RunLoop.main)
.assign(to: &$results)
// async/await: a single fetch — linear and readable
func loadDetail(id: Int) async throws -> Detail {
try await api.fetchDetail(id) // one value, then done
}
Saiki sampeyan arang butuh kabeh mesin Combine. AsyncSequence lan for await bisa nangani akeh kasus streaming kanthi native, lan sampeyan bisa nyambung: publisher.values mbukak publisher Combine minangka AsyncSequence.
for await value in publisher.values { // consume Combine stream with async/await
process(value)
}
debounce + combineLatest + switchToLatest), utawa nalika integrasi karo @Published lan kode Combine sing wis ana.AnyCancellable sing manual.Milih alat sing salah nyebabake pipeline Combine kanggo panggilan siji-jupuk sing sepele (overengineering) utawa state machine gawean tangan ing ngendi operator debounce wis cukup. Pewawancara senior kepengin ndeleng sampeyan nyocogake wangun data — siji nilai vs stream — karo abstraksi sing bener, lan ngerti yen async/await saiki dadi standar.
Pustaka pitakon wawancara IT kanthi jawaban rinci — saka Junior nganti Senior.
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