Question

How to pick a random value from a map in Swift

Answer 1

import Foundation

func getRandomValue(from inputMap: [Int: String]) -> String? {
    let values = Array(inputMap.values)
    
    return values.randomElement()
}

func main() {
    let myMap: [Int: String] = [
        1: "C++",
        2: "C",
        3: "Java",
        4: "C#",
        5: "Swift",
        6: "Python"
    ]

    if let randomValue = getRandomValue(from: myMap) {
        print("Random value: \(randomValue)")
    } else {
        print("Map is empty!")
    }
}

main()



/*
run:

Random value: C

*/

 

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