swiftplaygroundでSwift Concurrencyを試す

sample-swift-concurrency.swift

// https://online.swiftplayground.run/ でSwift Concurrencyを試す用のサンプル

struct Example {
    @available(macOS 10.15.0, *)
    static func factors(for number: Int) async -> [Int] {
        var result = [Int]()

        for check in 1...number {
            if number.isMultiple(of: check) {
                result.append(check)
            }
        }

        return result
    }
}

if #available(macOS 10.15.0, *) {
    let factors = await Example.factors(for: 120)
    print("Found \(factors.count) factors for 120.")
}