What is Key-Value-Coding and Key-Value-Observing in Objective C?

Question

Can someone explain in simple terms what is Key-Value-Coding and Key-Value-Observing? Please don\'t provide links to Apple Developer\'s reference Docum

Answer 1

Start here.

Key-value coding is a mechanism for accessing an object’s properties indirectly, using strings to identify properties, rather than through invocation of an accessor method or accessing them directly through instance variables.