How to take action when a property changes – Swift for Complete Beginners

Other videos in the Structs section:

3. How to take action when a property changes: This video

[tontonchan]

Some time when try the exercise, want to check the related material. If the exercise include the link for related material, that may help.
again, I like this version.

[hossamfarfour]

what is the difference between set-get and willSet-didSet?

[williamsquires]

Is there a way in a “willSet” property observer to prevent the assignment/change from occurring? (i.e. “the code tries to assign an illegal value, I’d like to prevent that”?)