Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.


when deleteSections should be passed a NSIndexset?

I am so very confused here. When Ash is modifying the sections, he always use a NSIndexset in lieu of a section, why are there two the same thing?

Also, he initiates it by [NSIndexSet indexSetWithIndex:sectionIndex] Since sectionIndex is just a number, does it make a NSIndexSet a set with only one number? So confused.....