In this recipe, we will learn how to use generics. This feature is used a lot in languages such as C++, Java, and C# because this way, we don't need to overload a function for each possible type that could be used in our function.
In this case, we will create a function that receives the input items and returns an array with these elements but completely shuffled.
To create a generic array initializer, follow these steps:
Add a new file called
ArrayInitand add this code in it:func arrayInit<T>(values:T...)->[T]{ var newArray = values for var i=0;i < newArray.count * 2 ; ++i { let pos1 = Int(arc4random_uniform(UInt32(newArray.count))) let pos2 = Int(arc4random_uniform(UInt32(newArray.count))) (newArray[pos1], newArray[pos2]) = (newArray[pos2], newArray[pos1]) } return newArray }Now, we need to add...