UX Designer Question: Download UX Designer PDF
Do you know what is a category and when is it used?
Answer:
A category is a way of adding additional methods to a class without extending it. It is often used to add a collection of related methods. A common use case is to add additional methods to built in classes in the Cocoa frameworks. For example adding async download methods to the UIImage class.
Previous Question | Next Question |
Tell Us What Do You Do When There’s Not Enough Time To Do Research? | What you love most about UI design? |