iOS Guide
BEST COLLECTION OF IOS INTERVIEW QUESTIONS WITH ANSWERS.
Thursday, January 18, 2018
List out what are the control transfer statements used in Swift?
Control transfer statements used in Swift includes
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Explain the difference between NSOperationQueue concurrent and non-concurrent.
In the context of an NSOperation object, which runs in an NSOperationQueue, the terms concurrent and non-concurrent do not necessarily refe...
What is the use of double question marks ???
To provide a default value for a variable. let missingName : String? = nil let realName : String? = “John Doe" let existentName :...
What is type aliasing in Swift?
This borrows very much from C/C++. It allows you to alias a type, which can be useful in many particular contexts. typealias AudioSample ...