5. Finite Observable VS Infinite Observable.md

날짜: 2023-02-12 15:22

주제: What is �different Hot Observable VS Cold Observable

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메모:

Finite observables and infinite observables refer to the number of elements that an observable sequence can emit.

Finite Observable

• A finite observable is an observable sequence that emits a limited number of elements and then completes.
• It's important to note that finite observables must complete, otherwise, it can lead to memory leaks or unexpected behavior in application.

Infinite Observable

• An Infinite observable is an observable sequence that never completes.
• Infinite observables must have a mechanism for stopping or disposing of the subscription, otherwise, it can also lead to unexpected behavior or performance issues.

Example

Finite

let items = [1, 2, 3, 4, 5]
let observable = Observable.from(items)

observable.subscribe(onNext: { item in
    print(item)
}, onCompleted: {
    print("Completed")
})
// 1 
// 2 
// 3 
// 4 
// 5 
// Completed 

Infinite

let observable = Observable<Int>.interval(.seconds(1), scheduler: MainScheduler.instance)

observable.subscribe(onNext: { time in
    print(time)
})

출처(참고문헌)

• chat.openai.com "what is �different Hot Observable VS Cold Observable"

연결문서

• [[RxSwift-Ch 2. Observables]]
• [[3. RxSwift 기본 개념]]

Tag

• #IOS/RxSwift/Observable/finite
• #IOS/RxSwift/Observable/Infinite