What are Traits, and how are they different from Roles?
In Moose, a trait is almost exactly the same thing as a role, except that traits typically register themselves, which allows you to refer to them by a short name (“Big” vs “MyApp::Role::Big”). In Moose-speak, a Role is usually composed into a class at compile time, whereas a Trait is usually composed into an instance of a class at runtime to add or modify the behavior of just that instance. Outside the context of Moose, traits and roles generally mean exactly the same thing. The original paper called them Traits, however Perl 6 will call them Roles.
Related Questions
- What happens if we have the same job description, but certain post holders believe that they are performing different roles?
- What are the roles of the different government authorities involved in administering the ATTC?
- What functions can be performed by people in different roles, e.g., TA, PA, Guest Instructor, etc.?
