Swift Array Programming Exercises: Create a new array taking the first element from two given arrays of integers

Last update on December 21 2024 10:29:49 (UTC/GMT +8 hours)

Write a Swift program to create a new array taking the first element from two given arrays of integers. If either array is length 0, ignore that array.

Pictorial Presentation:

Sample Solution:

Swift Code:

func new_array(_ array1: [Int], _ array2: [Int]) -> [Int] {
    
    if array1.count == 0 && array2.count == 0 
    {
        return []
    } 
    else if array1.count == 0 && array2.count != 0
    {
        return [array2.first!]
    } 
    else if array1.count != 0 && array2.count == 0 
    {
        return [array1.first!]
    }
    else
    {
        return [array1.first!, array2.first!]
    }
}

print(new_array([1, 2, 3], [4, 5, 6]))
print(new_array([], []))
print(new_array([1], [2]))
print(new_array([1, 5], []))

Sample Output:

[1, 4]
[]
[1, 2]
[1]

Swift Programming Code Editor:

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