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.

iOS Swift Basics (retired) Collections What is an Array?

Posted by Elliott Walker
Elliott Walker
259 Points

Isn't this right ? I tested it in XCode? What am I doing wrong?

What do I do here?

arrays.swift 
var todo:[String] = ["Learn Swift", "Build App", "Deploy App"]
printIn(todo)

1 Answer

William Li
PLUS
William Li
Courses Plus Student 26,867 Points
William Li
William Li
Courses Plus Student 26,867 Points

Couple of issues here.

  • printIn is a typo, correct spelling is println.
  • your code didn't call the count method on the Array.
println(todo.count)

One thing I'd like to point out is that, sometimes when you tested your code in Xcode and it runs without syntax error; doesn't necessarily means it'll pass the code challenge, your code has to do exactly as the challenge described in order to pass it.

Hope this helps