Generating random values in Swift between two integer values

Question

I'm trying to generate random values between two integers. I've tried this, which starts from 0,

let randomNumber = arc4random_uniform(10) println(randomNumber) 

But I need a value between 10 and 50.

Answer 1

try this

let randomNumber = arc4random_uniform(40) + 10 println(randomNumber) 

in general form

let lower : UInt32 = 10 let upper : UInt32 = 50 let randomNumber = arc4random_uniform(upper - lower) + lower println(randomNumber) 

Answer 2

This is an option for Swift 4.2 and above using the random() method, which makes it easy!

let randomInt = Int.random(in: 10...50) 

The range can be a closed (a...b) or half open (a..<b) range.