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              Swift Programming Basics for Beginner - A 10 Min Video TutorialAs we all are aware that Swift is new programming by sandeep.rawat
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How to use completion handler in swift
                      The code below will help you in declaration of completion handler  and how to call the completion handler in swift.
To declare a completion handler in swift use the line   :
 typealias completionHander = (sucess: Bool)->Void 
//decalrat... 
                       
        
        
