How does one generate a random number in Apple's Swift language?

Question

I realize the Swift book provided an implementation of a random number generator. Is the best practice to copy and paste this implementation in one\'s own program? Or is t

Answer 1

var randomNumber = Int(arc4random_uniform(UInt32(5)))

Here 5 will make sure that the random number is generated through zero to four. You can set the value accordingly.