Combine 실습 7

import Combine

// Transform - map
let numPublisher = PassthroughSubject<Int, Never>()
let subscription1 = numPublisher
	.map { $0 * 2}
    .sink { value in
    	print("Transformed Value: \(value)")
    }

numPublisher.send(10)
numPublisher.send(20)
numPublisher.send(30)
subscription1.cancel()

// Filter
let stringPublisher = PassthroughSubject<String, Never>()
let subscription2 = stringPublisher
	.filter { $0.contains("a") }
    .sink { value in
    	print("Filtered Value: \(value)")
    }
    
stringPublisher.send("abc")
stringPublisher.send("Jack")
stringPublisher.send("Joon")
stringPublisher.send("Jenny")
stringPublisher.send("Jason")
subscription2.cancel()

operator 들임