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!
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
shuaiqi sun386 Points
Gabe said in 13:01 that you can't perform math on NSInteger while the truth being quite the opposite.
NSInteger is a typedef long, which means it is a scalar value, which means you can use NSInteger anyhow you want with a int or a long.