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

iOS Swift Enums and Structs Enums and their Methods Initializer

Posted by Jotham Teo
Jotham Teo
4,460 Points

Why do we leave empty parentheses?

Why do we leave empty parentheses say for func dayString in the video? Please help me understand, thanks

1 Answer

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

Hi Jotham,

The function dayString references the set day assigned which is accessible via the self keyword which refers to the enum instance, in the case of this example we don't need a parameter as the day is already known therefore our switch statement will suffice.

If for instance you wanted to pass in a specific day you could use a parameter for that but in this case it's not required.

Hope that helps.