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swift Programming Exercises

Swift Array Programming Exercises: Create a new array, taking first two elements from a given array of integers

Swift Array Programming: Exercise-22 with Solution

Write a Swift program to create a new array, taking first two elements from a given array of integers. If the length of the given array is less than 2 use the single element of the given array.

Pictorial Presentation:

Swift Array Programming Exercises: Create a new array, taking first two elements from a given array of integers

Sample Solution:

Swift Code:

func new_array(_ a: [Int]) -> [Int] {
    guard a.count > 1 else 
    {
        return a
    }
    
    return Array(a.prefix(2))
}
print(new_array([0, 1, 2, 3, 4]))
print(new_array([0, 1, 2]))
print(new_array([0]))

Sample Output:

[0, 1]
[0, 1]
[0]

Swift Programming Code Editor:

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Next: 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.

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