Adding the word “and” before the final item of an array in Swift

Question

I have a list of items in an array. The default output of the items is a simple list separated by commas. However, a proper sentence would include the word \"and\"

Answer 1

Pop the last element and then add it onto the string later:

let last = myArray.popLast()

let str =  myArray.joinWithSeparator(", ") + " and " + last!

Editing:

    let myItem1: String = "Apple"
    let myItem2: String = "Bee"
    let myItem3: String = "Carrot"
    let myItem4: String = "Dog"

    let mySetArray = Set(arrayLiteral: myItem1, myItem2, myItem3, myItem4)

    var myArray = Array(mySetArray)

    let last = myArray.popLast()

    let str =  myArray.joinWithSeparator(", ") + " and " + last!
    print(str)

Answer 2

var arrNames:[String] = ["Apple","Bee","Carrot","Dog"];
var allNames:String!


override func viewDidLoad() {
    super.viewDidLoad()

    allNames = arrNames[0]

    for i in 1...arrNames.count-1{
        if i == arrNames.count - 1 {
            allNames = allNames + " and " + arrNames[i]
        }else{
            allNames = allNames + ", " + arrNames[i]
        }
    }

    print(allNames)
}

Answer 3

Given an array of String(s)

let words = ["Apple", "Bee", "Carrot", "Dog"]

you can simply write

let sentence = words.dropLast().joinWithSeparator(", ") + " and " + words.last!

// Apple, Bee, Carrot and Dog

This code needs the words array to contain at least 2 elements to work properly.

Answer 4

One of the possible ways is to use functional programming:

let myArray = ["Apple", "Bee", "Carrot", "Dog"]


let mapedArray = myArray.dropLast().map{
    myArray.indexOf($0) == myArray.count - 2 ? $0 + " and " + myArray[myArray.count - 1] : $0 + ","
}

Answer 5

Try this code

    let myItem1: String = "Apple"
    let myItem2: String = "Bee"
    let myItem3: String = "Carrot"
    let myItem4: String = "Dog"

    let myArray = Set(arrayLiteral: myItem1, myItem2, myItem3, myItem4)

    //print("Item count:", myArray.count)
    print("Item list:", myArray.joinWithSeparator(", "))

    var joinedString : NSString =  myArray.joinWithSeparator(", ")

    let lastRangeOfComma = joinedString.rangeOfString(",", options: .BackwardsSearch)
    joinedString = joinedString.stringByReplacingCharactersInRange(lastRangeOfComma, withString: " and")
    print("\(joinedString)")

Hope this helps.