So these lines says, if the item.status
Snowmanzzz
1

In this case, self.isChecked will always call the getter and return underlying date. Trick is in the KVO hook that will generate KVO change notification when underlying data changes. This trick allows you to observe transformed data, without actual property behind.

One clap, two clap, three clap, forty?

By clapping more or less, you can signal to us which stories really stand out.