Swift program to return an array from a user-defined function

Program/Source Code:

The source code to return an array from a user-defined function is given below. The given program is compiled and executed successfully.

// Swift program to return an array 
// from a user-defined function

import Swift

func RetArr(arr:Array<Int>) -> Array<Int>{
var arr1 = arr

arr1.append(6)
arr1.append(7)
arr1.append(8)

return arr1
}

let arr:[Int] = [1,2,3,4,5]
var retArr = RetArr (arr:arr)

print(retArr)

Output:

[1, 2, 3, 4, 5, 6, 7, 8]

...Program finished with exit code 0
Press ENTER to exit console.

Explanation:

In the above program, we imported a package Swift to use the print() function using the below statement,

import Swift;

Here, we created a user-defined function RetArr(). The RetArr() function accepts an integer array as a parameter and returns the modified array to the calling position and then we printed the result on the console screen.