Swift - Write program to convert number to English word

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Requirements

Write program to convert number to English word

Given an array of single-digit integers, write the code snippet to return the English equivalent of each integer:

Hint 

var numbers = [5,6,3,2,4,8,1,0]

should output: 

[Five, Six, Three, Two, Four, Eight, One, Zero]

Demo

let numNames =  [
    0: "Zero",// w  w w.  j  a va  2 s .  c  om
    1: "One",
    2: "Two",
    3: "Three",
    4: "Four",
    5: "Five",
    6: "Six",
    7: "Seven",
    8: "Eight",
    9 : "Nine"
]
var numbers = [5,6,3,2,4,8,1,0]
var numbersNames = numbers.map (
    {
        (num: Int) -> String in
            return numNames [num]!
    }
)
print(numbersNames)

Result

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