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 Objective-C Basics (Retired) Advanced Objective-C Dynamic Typing

Posted by MANUEL RIVERA
MANUEL RIVERA
1,067 Points

need help with challenge. declare a variable name thing of type ID and initialize it to nil

dynamic typing

1 Answer

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

declaring a variable of type id generally looks like:

id variableName = value;

note that since id types are pointers by default, you dont use an asterix like you would regular object variables.

so to declare an id type named thing and initialize it to nil you would use:

id thing = nil;