Generate random number of certain amount of digits

Question

Hy,

I have a very Basic Question which is :

How can i create a random number with 20 digits no floats no negatives (basically an Int) in Swift ?

Than

Answer 1

Swift 5: Simple Solution

func random(digits:Int) -> String {
    var number = String()
    for _ in 1...digits {
       number += "\(Int.random(in: 1...9))"
    }
    return number
}

print(random(digits: 1)) //3
print(random(digits: 2)) //59
print(random(digits: 3)) //926

Note It will return value in String, if you need Int value then you can do like this

let number = Int(random(digits: 1)) ?? 0