How to Generate Random Numbers in Swift 4 & 5

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Generating random numbers in an app may seem like a waste of time, but you may have to create a random number generator for various projects such as an auto password generator or even a game.

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Here’s the simplest way to accomplish this:

import UIKit

import Foundation

let ranNumber = Int (arc4random_uniform(100))

print (ranNumber)

Lets take this step by step:

Import Foundation as a habit when ever you work with numbers.
Let the value of ranNum hold the random number once the computer selects a number.
Since a number is an integer, let the program know this by adding the INT function.
The arc4random_uniform statement is the very basic way to make Swift generate the number.
The (100)) means to pick a number between 0 to 99.
Print the answer to the Playground output.

That’s one way. Another way is:

import UIKit

import Foundation

for i in 0…11

{

let ranNumber = Int (arc4random_uniform(UInt32(i)))

print (ranNumber)

}

Again, step by step: