Welcome to the Treehouse Community
Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.
Start your free trial![](https://ecs-static.teamtreehouse.com/assets/views/marketing/shared/community-banner-white-47072046c51352fe6a69f5e691ff5700b28bb11d45197d7bdf066d9ea3f72d0c.webp)
![Will Feldman](https://uploads.teamtreehouse.com/production/profile-photos/3591822/micro_profile-es.jpg)
Will Feldman
3,121 PointsWould the following code also work?
var state = ""
func isNumberDivisible(#numberOne: Int, #numberTwo: Int) -> Bool? {
if numberOne % numberTwo == 0{
state = "Divisible"
return true
}
else {
state = "Not Divisible"
return nil
}
}
isNumberDivisible(numberOne: 15, numberTwo: 4)
state
1 Answer
![Steve Hunter](https://uploads.teamtreehouse.com/production/profile-photos/806282/micro_Ironman.jpg)
Steve Hunter
57,712 PointsHi Will,
Your code works, yes. However, you may find some scope issues in practice as the variable state
may not always be visible to the function. In that case, the state
variable inside the method would be in a different scope to the one outside of it. That may cause you problems.
On the topic of this challenge, I recalled writing some lengthy posts about it, so I dug those up in case they're of interest to you. Have a look through this post.
Thanks,
Steve.