Random Function

App Development
1

Hi I have been watching the Coding With Chris Swift lessons on YouTube and could not get this piece of code to run. I am still learning vocabulary but I was not sure why it was not working. I am using Xcode 9.4. The error I seemed to get was Type ‘Int’ has no member ‘random’. So what am I missing?

class XmasPresent {

static func surprise() -> Int {
    return Int.random(in:1...10)
}

}

2

Hi

try returning this:

return Int(arc4random_uniform(10 - 1))

Blessings,
—Mark

3

Thanks. That worked. What does Xcode mean by this:

Type ‘Int’ has no member ‘random’

?

4

Your initial code works just fine for me. Are you sure the issue doesn’t happen because of something somewhere else in your code? Because Int most definitely does have a random method.

Oh! I just noticed that you said you were using Xcode 9.4. If you check the documentation page I linked to, you’ll see that Int.random(in:) is available in Xcode 10.0+. That’s your issue right there.

5

Excellent. Thank you yes. I am seriously just getting started this year and so ill pick up references as I go, so that is super helpful. I appreciate it.