配列オブジェクトを2文字（または2次元配列）に分割する方法

Question

以下のように配列を分割したいと思います。私は、データ収入を分割し、UITableViewでそれを提示したいこれらの3つの配列に分離することにより

let firstArray = ["Europe", "Europe", "America", "America"] 
let secondArray = ["France", "Italy", "USA", "Canada"] 
let thirdArray = ["Paris", "Rome", "Washington", "Ottawa"] 

の中へ

let arrayToSplit = ["Europe|#|France|#|Paris", "Europe|#|Italy|#|Rome", "America|#|USA|#|Washington", "America|#|Canada|#|Ottawa"] 

。

Answer 1

ていない最善の解決策が、期待される結果（ヒントは、コードコメントである）を有する：

let arrayToSplit = ["Europe|#|France|#|Paris", "Europe|#|Italy|#|Rome", "America|#|USA|#|Washington", "America|#|Canada|#|Ottawa"] 
var firstArray = [String]() 
var secondArray = [String]() 
var thirdArray = [String]() 

for element in arrayToSplit { 

    // new array with substrings divided by "|#|" e.g. ["Europe", "Europe", "America", "America"] 
    let newArray = element.componentsSeparatedByString("|#|") 
    firstArray.append(newArray[0]) 
    secondArray.append(newArray[1]) 
    thirdArray.append(newArray[2]) 
} 

print("first array: \(firstArray)") // first array: ["Europe", "Europe", "America", "America"] 
print("second array: \(secondArray)") // second array: ["France", "Italy", "USA", "Canada"] 
print("third array: \(thirdArray)") // third array: ["Paris", "Rome", "Washington", "Ottawa"] 

Answer 2

let arrayToSplit = ["Europe|#|France|#|Paris", "Europe|#|Italy|#|Rome", "America|#|USA|#|Washington", "America|#|Canada|#|Ottawa"] 


    print(arrayToSplit) 


    let firstArray : NSMutableArray = [] 
    let secondArray : NSMutableArray = [] 
    let thirdArray : NSMutableArray = [] 

    for var i = 0; i < arrayToSplit.count; i++ 
    { 
     let str : String = arrayToSplit[i] as String 

     let ary = str.characters.split{$0 == "|"}.map(String.init) 

     firstArray.addObject(ary[0]) 
     secondArray.addObject(ary[2]) 
     thirdArray.addObject(ary[4]) 
    } 

    print(firstArray) 
    print(secondArray) 
    print(thirdArray) 

Answer 3

let arrayToSplit = ["Europe|#|France|#|Paris", "Europe|#|Italy|#|Rome", "America|#|USA|#|Washington", "America|#|Canada|#|Ottawa"] 

let arrayOfLists = arrayToSplit.map{ 
    $0.componentsSeparatedByString("|#|") 
} 

let columns = Array(0..<3).map{ i in 
    arrayOfLists.map{ list in list[i]} 
} 

print(columns) 
//[["Europe", "Europe", "America", "America"], ["France", "Italy", "USA", "Canada"], ["Paris", "Rome", "Washington", "Ottawa"]]