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목록operator (16)
Tunko Development Diary
RxSwift) Transforming Operators (startWith, concat)
startWith startWith는 옵저버블 앞수분에 다른 항목을 추가합니다. startWith는 가변 파라미터 입니다. let disposeBag = DisposeBag() let emoticons = ["🍎", "🍊", "🥝", "🍉"] Observable.from(emoticons) .startWith("🍇") .startWith("🍈") .startWith("🍌", "🫐", "🍒") .subscribe { print($0) } .disposed(by: disposeBag) 출력 next(🍌) next(🫐) next(🍒) next(🍈) next(🍇) next(🍎) next(🍊) next(🥝) next(🍉) completed 결과를 보면 가장 나중에 추가한 startWith가 가장 먼저 방출되는것을..
RxSwift) Transforming Operator (toArray, map, compactMap)
toArray toArray는 옵저버블이 방출하는 모든 이벤트를 완료시점에 배열로 방출합니다. let disposeBag = DisposeBag() let subject = PublishSubject() subject .toArray() .subscribe{ print($0) } .disposed(by: disposeBag) subject.onNext(1) subject.onNext(2) subject.onNext(3) subject.onNext(4) subject.onNext(5) subject.onCompleted() 출력 success([1, 2, 3, 4, 5]) 옵저버블이 Completed가 되지 않으면 아무것도 방출하지 않습니다. map let disposeBag = DisposeBag() l..
ReSwift) Filtering Operators(debounce, throttle)
debounce let disposeBag = DisposeBag() let tapObservable = Observable.create { observer in DispatchQueue.global().async { for i in 1...10 { observer.onNext("Tap \\(i)") Thread.sleep(forTimeInterval: 0.3) } Thread.sleep(forTimeInterval: 1) for i in 11...20 { observer.onNext("Tap \\(i)") Thread.sleep(forTimeInterval: 0.5) } observer.onCompleted() } return Disposables.create { } } tapObservable .de..
RxSwift) Filtering Operators (take)
take let disposeBag = DisposeBag() let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] Observable.from(numbers) .take(5) .subscribe { print($0) } .disposed(by: disposeBag) 출력 next(1) next(2) next(3) next(4) next(5) completed take 인자로 들어간 count만큼 방출합니다. take(while:) let disposeBag = DisposeBag() let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] Observable.from(numbers) .take(while: { $0 < 3} ) .subscribe {..
RxSwift) Filtering Operators [ignoreElements, element(at:), filter, skip, skip(while:), skip(until:), skip(duration:scheduler:)]
ignoreElements let disposeBag = DisposeBag() let elements = [0,1,2,3,4,5] Observable.from(elements) .ignoreElements() .subscribe { print($0) } .disposed(by: disposeBag) 옵저버블이 방출하는 Next 이벤트는 무시 error와 completed 이벤트만 받습니다. element(at:) let disposeBag = DisposeBag() let elements = [0,1,2,3,4,5] Observable.from(elements) .element(at: 3) .subscribe { print($0) } .disposed(by: disposeBag) 특정인덱스에 위치한 속..