UX Designer Question: Download Questions PDF
Tell me what is KVC and KVO? Give an example of using KVC to set a value?
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Answer:
KVC stands for Key-Value Coding. It's a mechanism by which an object's properties can be accessed using string's at runtime rather than having to statically know the property names at development time. KVO stands for Key-Value Observing and allows a controller or class to observe changes to a property value.
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