Question

How to initialize and print a byte array in Swift

Answer 1

import Foundation

let byteArray: [UInt8] = [1, 2, 3, 4, 5]

print(byteArray)



/*
run:

[1, 2, 3, 4, 5]

*/

 

70+ SQL courses for beginners and professionals

Answer 2

import Foundation

let byteArray = [UInt8](repeating: 0, count: 5) // 5 elements, all initialized to 0

print(byteArray)



/*
run:

[0, 0, 0, 0, 0]

*/

 

70+ SQL courses for beginners and professionals

Answer 3

import Foundation

let byteArray = [UInt8](repeating: 16, count: 5) // All elements set to 16

print(byteArray)



/*
run:

[16, 16, 16, 16, 16]

*/

 

70+ SQL courses for beginners and professionals

Answer 4

import Foundation

let byteArray = [UInt8](repeating: 16, count: 5) // All elements set to 16

print(byteArray.map { String($0) }.joined(separator: ", "))



/*
run:

16, 16, 16, 16, 16

*/

 

70+ SQL courses for beginners and professionals