property-bindings
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drewag
Property Bindings for Objective-C
Add a block parameter that accepts the value of the observed property and returns the value to be set on the observing object.
The UITableView binding requires that an array property triggers granular KVO notifications for insertions, replacements, and deletions which an NSArray does not do by default. The binding should enable these...
Ensure two properties are always in sync regardless of which one is changed.