What is made up of nserror object?
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Explain me what is "delegate"?
In which language is ios written?
what is the difference between Xcode, Cocoa and Objective C?
What does static analyser do?
What is code signing in iOS operating system?
What is the benefit of setting reuseidentifier to a non-nil value?
Explain differences between foundation and corefoundation
What is nsuserdefaults?
What is gcd? How is it used?
If you use location services in your app, will it drain your battery.if yes? How can we avoid?
Mention what is the use of po command in xcode?
Will iphone 7 get ios 13?