Question

How to convert int array to int number in Swift

Answer 1

import Foundation

func intArrayToIntNumber(_ arr: [Int]) -> Int {
    var n = 0

    for num in arr {
        n = n * 10 + num
    }

    return n
}

let arr = [4, 6, 3, 9, 1, 2]

print(intArrayToIntNumber(arr))



/*
run:

463912

*/

 

70+ SQL courses for beginners and professionals