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


Cynthia Lee
Cynthia Lee
8,966 Points

Why second addChoice method in Adventure struct?

Why did pasan switched to second addChoice method with page argument here? Please explain. From story as second argument her switched to page as second argument.. I cant figure out why!

static var story: Page {
    let returnTrip = Page(story: .ReturnTrip)
    let touchDown = returnTrip.addChoice("Stop and Investigate", story: .TouchDown)
    let homeWard = returnTrip.addChoice("Continue Home", story: .Homeward)        
    let rover = touchDown.addChoice("Explore the rover", story: .Rover)
    let crate = touchDown.addChoice("Open the crate", story: .Crate)        
    homeWard.addChoice("Headback to Mars", page: touchDown)