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December 10, 2018 12:10
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Basic example of how to use the RxSwift operators.
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| let disposeBag = DisposeBag() | |
| let observable = Observable.of(1, 2, 3, 4, 5, 6) | |
| var evenNumbers = [String]() | |
| func getFormatter() -> (Int) -> String { | |
| let value = NumberFormatter() | |
| value.numberStyle = .spellOut | |
| return { | |
| value.string(from: NSNumber(value: $0)) ?? "A number?" | |
| } | |
| } | |
| let formatToString = getFormatter() | |
| observable | |
| .filter { $0 % 2 == 0 } | |
| .map(formatToString) | |
| .toArray() | |
| .subscribe( | |
| onNext: { numbers in | |
| evenNumbers = numbers | |
| }, onCompleted: { | |
| print("Even numbers: \(evenNumbers)") | |
| }) | |
| .disposed(by: disposeBag) |
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