separate an array of arrays in Swift : and thank you for your help in advance! I have an array of arrays of strings [[String]]. I want to reverse each of the array elements. 
                    var players = [["A","B","C","D"],["E","F","G","H"], ["J","K","L","M"]]


     I want to reverse each of the individual array elements such that the result is
                    ["D","C","B","A"],
                    ["H","G","F","E"],
                    ["M","L","K","J"]