Question

How to pad an array to a specified length with a given value in Swift

Answer 1

import Foundation

func arrayPad(_ arr: [Int], _ size: Int, _ value: Int) -> [Int] {
    var paddedArray = arr
    if size > arr.count {
        paddedArray.append(contentsOf: Array(repeating: value, count: size - arr.count))
    }
    
    return paddedArray
}

let arr = [1, 2, 3]
let size = 7
let value = 0

let paddedArray = arrayPad(arr, size, value)

print(paddedArray)



/*
run:

[1, 2, 3, 0, 0, 0, 0]

*/

 

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